Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV radiations causes ozone depletion .

Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV radiations causes ozone depletion .
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Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV ... D. X is not correct, Y is correct.
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This cause the depletion of ozone layer by decomposing ozone to oxygen . a) CFC b)UV radiations c)CO2 d)O2

Description : This cause the depletion of ozone layer by decomposing ozone to oxygen . a) CFC b)UV radiations c)CO2 d)O2

Last Answer : b)UV radiations

Ozone saves the biosphere by absorbing high energy radiations called - (1) Infra-red (2) Gamma rays (3) Ultraviolet rays (UV) (4) X-rays

Description : Ozone saves the biosphere by absorbing high energy radiations called - (1) Infra-red (2) Gamma rays (3) Ultraviolet rays (UV) (4) X-rays

Last Answer : (3) Ultraviolet rays (UV) Explanation: The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It absorbs 97 to 99 ... 200 nm to 315 nm wavelength), which otherwise would potentially damage exposed life forms near the surface.

Ozone saves the biosphere by absorbing high energy radiations called _____ . (1) Infra-red (IR) (2) Gamma rays (3) Ultraviolet rays (UV) (4) X–rays

Description : Ozone saves the biosphere by absorbing high energy radiations called _____ . (1) Infra-red (IR) (2) Gamma rays (3) Ultraviolet rays (UV) (4) X–rays

Last Answer : Ultraviolet rays (UV) 

Pesticide responsible for Ozone depletion is a) BHC b) DDT c) Melathion d) None of the above.

Description : Pesticide responsible for Ozone depletion is a) BHC b) DDT c) Melathion d) None of the above.

Last Answer : d) None of the above. 

Exposure of UV radiations causes

Description : Exposure of UV radiations causes

Last Answer : Exposure of UV radiations causes A. Formation of thyamine dimers B. Addition of base pairs C. Deletion of base pairs D. Methylation of bases.

Exposure of UV radiations causes

Description : Exposure of UV radiations causes

Last Answer : Exposure of UV radiations causes A. Damage to eye sight B. Sunburn C. Skin cancer D. All the above

Exposure of UV radiations causes

Description : Exposure of UV radiations causes

Last Answer : Exposure of UV radiations causes A. Damage to eye sight B. Sunburn C. Skin cancer D. All the above

Rio Summit is associated with – (1) Convention on Biological Diversity (2) Green house gases (3) Ozone depletion (4) Wet lands

Description : Rio Summit is associated with – (1) Convention on Biological Diversity (2) Green house gases (3) Ozone depletion (4) Wet lands

Last Answer : (1) Convention on Biological Diversity Explanation: The United Nations Conference on Environment and Development (UNCED), otherwise known as the Earth Summit or Rio Summit, was held in Rio de Janeiro, ... for signature at the Rio Summiton 5 June 1992 and entered into force on 29 December 1993.

Which one of the following is not a matter a global concern in the removal of tropical forests ? (A) Their ability to absorb the chemicals that contribute to depletion of ozone layer. (B) Their role in maintaining the oxygen and carbon balance of the earth. (C) Their ability to regulate surface and air temperatures, moisture content and reflectivity. (D) Their contribution to the biological diversity of the planet.

Description : Which one of the following is not a matter a global concern in the removal of tropical forests ? (A) Their ability to absorb the chemicals that contribute to depletion of ozone layer ... , moisture content and reflectivity. (D) Their contribution to the biological diversity of the planet.

Last Answer : (A) Their ability to absorb the chemicals that contribute to depletion of ozone layer.

Rio Summit is associated with (1) Convention on Biological Diversity (2) Green house gases (3) Ozone depletion (4) Wet lands

Description : Rio Summit is associated with (1) Convention on Biological Diversity (2) Green house gases (3) Ozone depletion (4) Wet lands

Last Answer :  Convention on Biological Diversity

Ultraviolet radiations from sunlight causes a reaction that produces (a) fluorides (b) carbon monoxide (c) sulphur dioxide (d) ozone.

Description : Ultraviolet radiations from sunlight causes a  reaction that produces (a) fluorides (b) carbon monoxide (c) sulphur dioxide (d) ozone.

Last Answer : (d) ozone.

Ultraviolet radiations from sunlight causes a reaction that produces (a) fluorides (b) carbon monoxide (c) sulphur dioxide (d) ozone.

Description : Ultraviolet radiations from sunlight causes a reaction that produces (a) fluorides (b) carbon monoxide (c) sulphur dioxide (d) ozone.

Last Answer : (d) ozone.

UV radiations bring about

Description : UV radiations bring about

Last Answer : UV radiations bring about A. skin cancers B. Mouth cancer C. Lung cancer D. Liver cancer

UV radiations in the stratosphere are absorbed by

Description : UV radiations in the stratosphere are absorbed by

Last Answer : UV radiations in the stratosphere are absorbed by A. Oxygen B. ozone C. sulphur dioxide D. Argon.

UV light falls in the category of------? A. Ionizing Radiations (Answer) B. Non Ionizing Radiation C. Visible light D. None

Description : UV light falls in the category of------? A. Ionizing Radiations (Answer) B. Non Ionizing Radiation C. Visible light D. None

Last Answer : A. Ionizing Radiations (Answer)

Assertion (A): UV radiation causes photodissociation of ozone into `O_(2)` and O, thus causing damage to the stratospheric change. Reason (R): Ozone h

Description : Assertion (A): UV radiation causes photodissociation of ozone into `O_(2)` and O, thus causing damage to the stratospheric change. Reason (R): Ozone h

Last Answer : Assertion (A): UV radiation causes photodissociation of ozone into `O_(2)` and O, thus causing damage ... true but reason is wrong D. Both are wrong

Ozone hole causes a) Global warming b) Reduction in the rate of photosynthesis c) More UV rays come to earth d) All the above.

Description : Ozone hole causes a) Global warming b) Reduction in the rate of photosynthesis c) More UV rays come to earth d) All the above.

Last Answer : c) More UV rays come to earth

Nitrogen oxides released in the stratosphere causes ozone depletion due to

Description : Nitrogen oxides released in the stratosphere causes ozone depletion due to

Last Answer : Nitrogen oxides released in the stratosphere causes ozone depletion due to A. catalysing conversion of ... . reacting with ozone D. All the above

Depletion of ozone layer in the atmosphere causes cancer of a) skin b)stomach c)blood d)lungs

Description : Depletion of ozone layer in the atmosphere causes cancer of a) skin b)stomach c)blood d)lungs

Last Answer : a) skin

Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratosphe

Description : Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratosphe

Last Answer : Which of the following is not one of the prime health risks associated with greater UV radiation ... C. Reduced Immune System D. Damage to eyes

What is biological magnification? Will the levels of this magnification be different at different levels of the ecosystem? -Biology

Description : What is biological magnification? Will the levels of this magnification be different at different levels of the ecosystem? -Biology

Last Answer : The accumulation of harmful chemicals in the body of living organisms at different trophic levels in a food chain is called biological magnification. Yes, the concentration of these harmful chemicals ... at the last trophic levels which is mostly of the top carnivores (quaternary consumers).

What is biological magnification ? Will the levels of this magnification be different at different levels of the ecosystem ? -Biology

Description : What is biological magnification ? Will the levels of this magnification be different at different levels of the ecosystem ? -Biology

Last Answer : Biological magnification : The increase in concentration of harmful chemical substances like pesticides in the body of living organisms at each trophic level of a food chain is called biological ... topmost trophic level. It would affect their biological process such as growth, reproduction, etc.

Biological magnification

Description : Biological magnification

Last Answer : Many of the pesticides are not biodegradable and keep on accumulating in the food chain, this process is called as bio-magnification

What is biological magnification?

Description : What is biological magnification?

Last Answer : Many of the pesticides are not biodegradable and keep on accumulating in the food chain, this process is called as bio-magnification

Microorganism used as biological indicator for sterilization by ionizing radiations A Bacillus subtilis B Bacillus pumilus C Salmonella typhi D Serratia marcescens

Description : Microorganism used as biological indicator for sterilization by ionizing radiations A Bacillus subtilis B Bacillus pumilus C Salmonella typhi D Serratia marcescens

Last Answer : B Bacillus pumilus

The ultra violet radiations of the Sun do not reach the Earth because the upper layers of the atmosphere contain (a) oxygen (b) helium (c) ozone (d) hydrogen

Description : The ultra violet radiations of the Sun do not reach the Earth because the upper layers of the atmosphere contain (a) oxygen (b) helium (c) ozone (d) hydrogen

Last Answer : Ans:(c)

Ozone layer in the outer atmosphere helps us in – (1) reflecting radio waves and makes radio communication possible (2) regulating he temperature of atmosphere (3) absorbing cosmic ray particles (4) absorbing U-V radiations

Description : Ozone layer in the outer atmosphere helps us in – (1) reflecting radio waves and makes radio communication possible (2) regulating he temperature of atmosphere (3) absorbing cosmic ray particles (4) absorbing U-V radiations

Last Answer : (4) absorbing U-V radiations Explanation: The ozone layer is a layer in Earth's atmosphere containing relatively high concentrations of ozone (03) which absorbs 97- 99% of the Sun's medium-frequency ultraviolet light.

Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by – (1) Carbon dioxide (2) Ammonia (3) Chlorine (4) Ozone

Description : Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by – (1) Carbon dioxide (2) Ammonia (3) Chlorine (4) Ozone

Last Answer : (4) Ozone Explanation: The ozone layer absorbs 97-99% of the Sun's medium-frequency ultraviolet light (from about 200 nm to 315 nm wavelength), which potentially damages exposed life forms on Earth. Ozone ... Earth's atmosphere. In total, ozone makes up only 0.6 parts per million of the atmosphere.

Ozone layer in the outer atmosphere helps us in (1) reflecting radio waves and makes radio communication possible (2) regulating the temperature of atmosphere (3) absorbing cosmic ray particles (4) absorbing U-V radiations

Description : Ozone layer in the outer atmosphere helps us in (1) reflecting radio waves and makes radio communication possible (2) regulating the temperature of atmosphere (3) absorbing cosmic ray particles (4) absorbing U-V radiations

Last Answer :  absorbing U-V radiations

Ultra violet radiations of the Sun do not reach the earth because, earth’s atmosphere is surrounded by (1) Carbon dioxide (2) Ammonia (3) Chlorine (4) Ozone

Description : Ultra violet radiations of the Sun do not reach the earth because, earth’s atmosphere is surrounded by (1) Carbon dioxide (2) Ammonia (3) Chlorine (4) Ozone

Last Answer : Ozone

The biological amplification of DDT in the various trophic levels is known as

Description : The biological amplification of DDT in the various trophic levels is known as

Last Answer : The biological amplification of DDT in the various trophic levels is known as A. Green house ... B. biomagnification C. Eutrophication D. Pollution.

Which of the following can be used for biological control of mosquitoes? (1) DDT (2) Gambusia (3) Oil (4) Ointments

Description : Which of the following can be used for biological control of mosquitoes? (1) DDT (2) Gambusia (3) Oil (4) Ointments

Last Answer : (2) Gambusia Explanation: Biological control is the use of natural enemies to manage the mosquito population. Effective biocontrol agent s include predatory fish that teed on mosquito larvae such as Gambusia affinis (mosquitofish) and some cyprinids (Carps and minnows).

Which of the following can be used for biological control of mosquitoes ? (1) DDT (2) Gambusia (3) Oil (4) Ointments

Description : Which of the following can be used for biological control of mosquitoes ? (1) DDT (2) Gambusia (3) Oil (4) Ointments

Last Answer : Gambusia

The substance that can be used as an explosive is (a) DDT (b) ozone (c) TNT (d) buckminsterfullerene

Description : The substance that can be used as an explosive is (a) DDT (b) ozone (c) TNT (d) buckminsterfullerene

Last Answer : Ans:(c)

If UV-C helps create ozone layer and converts Oxygen to O-3. Then why isn't it called ionizing radiation?

Description : If UV-C helps create ozone layer and converts Oxygen to O-3. Then why isn't it called ionizing radiation?

Last Answer : answer:In general, Ionizing radiation uses alpha, beta or gamma particles In general , Non ionizing radiation is electomagnetic waves like radio waves, light, thermal UV-C is considered right at the ... consider anything less than 100 nm ionizing . The EPA has a handy chart discussing this.

Peeling of ozone umbrella, which protects us from UV rays, is caused by:

Description : Peeling of ozone umbrella, which protects us from UV rays, is caused by:

Last Answer : Peeling of ozone umbrella, which protects us from UV rays, is caused by: A. CFCs B. PAN C. `CO_(2)` D. coal burning

(3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ozone UV absorption is important to life, since it extends the absorption of UV by ordinary oxygen and nitrogen in air (which absorbs all wavelengths < 200 nm) through the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Description : (3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ... the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Last Answer : The advantage of detergents over soaps is – (1) Detergents are soluble in water (2) Detergents could not give much lather (3) Detergents give lather even with hard water (4) Soaps give lather with only soft water

(3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ozone UV absorption is important to life, since it extends the absorption of UV by ordinary oxygen and nitrogen in air (which absorbs all wavelengths < 200 nm) through the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Description : (3) checking the penetration of ultra-violet rays to the earth Explanation: Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ... the lower UV-C (200 nm-280 nm) and the entire UV-B band (280 nm-315 nm).

Last Answer : The advantage of detergents over soaps is – (1) Detergents are soluble in water (2) Detergents could not give much lather (3) Detergents give lather even with hard water (4) Soaps give lather with only soft water

Which one among the following is responsible for formation of "Ozone Holes" in the atmosphere? (1) Benzopyrene (2) Hydrocarbons (3) Chlorofluorocarbons (4) UV radiation

Description : Which one among the following is responsible for formation of "Ozone Holes" in the atmosphere? (1) Benzopyrene (2) Hydrocarbons (3) Chlorofluorocarbons (4) UV radiation

Last Answer : (3) Chlorofluorocarbons Explanation: Chlorofluorocarbon (CFCs), commonly known by the DuPont brand name Freon, are considered as one of the ozonedepleting substances.

What is ozone depletion?

Description : What is ozone depletion?

Last Answer : Ozone depletion refers to the thinning of the Earth's ozone layer, primarily in the stratosphere, caused by the release of certain chemicals, such as chlorofluorocarbons (CFCs), which can lead to increased exposure to harmful ultraviolet radiation from the sun.

Effect of ozone layer depletion?

Description : Effect of ozone layer depletion?

Last Answer : It causes harmful activities like skin cancer, cataracts. Mainlychildren are worst affected. It is also harmful for eyes.

Do you think there is global warming or some geographical regions are more affected by ozone depletion than others?

Description : Do you think there is global warming or some geographical regions are more affected by ozone depletion than others?

Last Answer : Global warming and ozone depletion both are different issues of global concerns. Global warming are due to release of green house gases and dealt with Kyoto protocol but ozone depletion are due to ... carbon and dealt with Montréal protocol. I think there is no any relation with each other

Depletion of ozone is mainly due to

Description : Depletion of ozone is mainly due to

Last Answer : Depletion of ozone is mainly due to A. `CO_(2)` B. CFC C. `SO_(2)` D. `CH_(4)`.

Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of stratospheric ozone layer has resulted in increase in ult

Description : Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of stratospheric ozone layer has resulted in increase in ult

Last Answer : Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of ... true but reason is wrong D. Both are wrong

The depletion of ozone layer is due to:

Description : The depletion of ozone layer is due to:

Last Answer : The depletion of ozone layer is due to: A. Oxides of nitrogen B. Oxides of carbon C. Oxides of sulphur D. None of the above

The gas, responsible for ozone depletion

Description : The gas, responsible for ozone depletion

Last Answer : Ans. CF2Cl2

Mirage is due to (a) Unequal heating of different parts of the atmosphere (b) Magnetic disturbances in the atmosphere (c) Depletion of ozone layer in the atmosphere (d) Equal heating of different parts of the atmosphere

Description : Mirage is due to (a) Unequal heating of different parts of the atmosphere (b) Magnetic disturbances in the atmosphere (c) Depletion of ozone layer in the atmosphere (d) Equal heating of different parts of the atmosphere

Last Answer : Ans:(a)

Of the following man-made disasters, which is socially induced? (1) Debris Avalanche (2) Salt Water Intrusion (3) Arson (4) Ozone depletion

Description : Of the following man-made disasters, which is socially induced? (1) Debris Avalanche (2) Salt Water Intrusion (3) Arson (4) Ozone depletion

Last Answer : (3) Arson Explanation: Arson is the crime of intentionally and maliciously setting lire to buildings, wild land areas, vehicles or other property with the intent to cause damage. Distinct from ... and natural wildfires, it is considered to be a man-made disaster which is socially induced.

The depletion of Ozone layer is mainly due to – (1) Volcanic eruptions (2) Aviation fuels (3) Radioactive rays (4) Chlorofluorocarbons

Description : The depletion of Ozone layer is mainly due to – (1) Volcanic eruptions (2) Aviation fuels (3) Radioactive rays (4) Chlorofluorocarbons

Last Answer : (4) Chlorofluorocarbons Explanation: Chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. Chloroiluorocarbon (CFC) is ... , chlorine, and fluorine, produced as a volatile derivative of methane and ethane.

The depletion in Ozone layer is caused by - (1) Nitrous oxide (2) Carbon dioxide (3) Chlorofluorocarbons (4) Methane

Description : The depletion in Ozone layer is caused by - (1) Nitrous oxide (2) Carbon dioxide (3) Chlorofluorocarbons (4) Methane

Last Answer : (3) Chlorofluorocarbons Explanation: Chlorofluorocarbons (CFCs), also known as Freon, cause the breakdown of the ozone layer that protects the earth from the sun's ultraviolet (UV) radiation. In the ... depletion in the upper atmosphere, CFCs have been phased out under the Montreal Protocol of 1987.