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

Ozone hole causes a) Global warming b) Reduction in the rate of photosynthesis c) More UV rays come to earth d) All the above.
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c) More UV rays come to earth
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The presence of ozone in the stratosphere is responsible for (1) increasing the average global temperature in recent years (2) higher rate of photosynthesis (3) checking the penetration of ultra-violet rays to the earth (4) supplying oxygen for people travelling in jets

Description : The presence of ozone in the stratosphere is responsible for (1) increasing the average global temperature in recent years (2) higher rate of photosynthesis (3) checking the penetration of ultra-violet rays to the earth (4) supplying oxygen for people travelling in jets

Last Answer : checking the penetration of ultra-violet rays to the earth

Sulfuric acid aerosols from the eruption of Mt. Pinatubo reduced the rate of global warming last year. They also contributed to the record size of: w) acid rainfalls in Europe x) the anchovy catch off Peru y) the ozone hole over Antarctica z) fish kills in the Amazon River

Description : Sulfuric acid aerosols from the eruption of Mt. Pinatubo reduced the rate of global warming last year. They also contributed to the record size of: w) acid rainfalls in Europe x) the anchovy catch off Peru y) the ozone hole over Antarctica z) fish kills in the Amazon River

Last Answer : ANSWER: Y -- THE OZONE HOLE OVER ANTARCTICA

One of the main function of the earth’s ozone layer is to ? A. Prevent global warming B. Filter out ultraviolet rays (Answer) C. Absorb pollution D. All of the above

Description : One of the main function of the earth’s ozone layer is to ? A. Prevent global warming B. Filter out ultraviolet rays (Answer) C. Absorb pollution D. All of the above

Last Answer : B. Filter out ultraviolet rays (Answer)

(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

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Description : Ozone hole is caused by a) Acetylene b) Ethylene c) Chlorofluorocarbons d) Methane.

Last Answer : c) Chlorofluorocarbons

Role of CFC present in atmosphere is to a) Reduction in ozone b) Ozone formation c) Formation of leg haemoglobin a) Enhance chlorophyll formation.

Description : Role of CFC present in atmosphere is to a) Reduction in ozone b) Ozone formation c) Formation of leg haemoglobin a) Enhance chlorophyll formation.

Last Answer : a) Reduction in ozone

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

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Last Answer : Ultraviolet rays (UV) 

The Earth Summit held in Rio de Janeiro in 1992 was called (a) for immediate steps to discontinue use of CFCs that were damaging the ozone layer (b) to reduce CO2 emissions and global warming (c) for conservation of biodiversity and sustainable utilisation of its benefits (d) to assess threat posed to native species by invasive weed species.

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Which of the following is least likely to be an effect of global warming? (1) Increased frequency of hurricanes (2) Loss of fertile delta region as for agriculture (3) Decreased rate of photosynthesis in vegetation (4) Shrinking of the polar ice regions

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How does ozone depletion contribute towards global warming?

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What refers to the heating of the earth’s atmosphere not caused by direct sunlight but by infrared light radiated by the surface and absorbed mainly by atmospheric carbon dioxide?  A. Greenhouse effect  B. Global warming  C. Thermal rise effect  D. Ozone effect

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Select the correct statement: (1) C4 pathway for. CO2 fixation were discovered by Hatch and Slack (2) CO2 is essential for photosynthesis (3) Addition of sodium carbonate in water retards photosynthetic rate in vallisneria (4) Phloem is the principal pathway for translocation of solutes

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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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Ozone day is observed on a) 25th December b) 16th September c) 21st April d) 30th January.

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Chief air pollutant which is likely to deplete ozone layer is a) Sulphur dioxide b) Carbon dioxide c) Carbon monoxide d) Nitrogen oxides and Fluorocarbons.

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Ozone layer is found in a) Thermosphere b) Stratosphere c) Mesosphere d) Lithosphere.

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Which gas of the atmosphere holds up ultraviolet rays ? a) O2 b) O2 c) N2 d) CO2.

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What is photosynthesis ?

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Last Answer : The process by which green plants prepare sugary foods with carbon dioxide and water in the presence of sunlight is called photosynthesis.

What do plants leave during photosynthesis ?

Description : What do plants leave during photosynthesis ?

Last Answer : Plants release oxygen during photosynthesis.

Which of the following works in photosynthesis of plants ?

Description : Which of the following works in photosynthesis of plants ?

Last Answer : Chlorophyll works in photosynthesis of plants.

The shade of a tree is cooler than the shade of a roof due to: (a) Respiration (b) Photosynthesis (c) Transpiration (d) Guttation

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The site for light reaction of photosynthesis is: (b) Grana (b) Stoma (c) ER (d) Cytoplasm

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Moll’s experiment explains that (a) Carbon dioxide is essential for photosynthesis (b) Chlorophyll and water are necessary for photosynthesis (c) Light and water are essential for photosynthesis (d) All of the above are correct

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Criticize the following statement: Plants carry on photosynthesis; animals carry on respiration instead.

Description : Criticize the following statement: Plants carry on photosynthesis; animals carry on respiration instead.

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Potential energy is produced during a.Photorespiration b.Respiration c.Photosynthesis d.ATP synthesis

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Main function of biofertilizer is a) To increase chemical process b) To increase physiological process c) To increase biological process d) To increase photosynthesis process

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Eutrophication results in reduction of a) Dissolved nitrate b) Dissolved Oxygen c) Mineral salts d) Parasitic protozoa.

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Are humans one of the main causes of Global Warming?

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main causes of global warming

Description : main causes of global warming

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What is one of the causes of global warming ?

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What are the other causes of global warming besides the burning of fossil fuels?

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Global warming will causes

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The source of energy that causes the least global warming is – (1) Coal (2) Geothermal energy (3) Natural Gas (4) Petroleum

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Pick out the correct statement. (A) Deforestation helps in controlling the green house effect (B) Global warming is detrimental for increase in food productivity and may cause flood and cyclone (C) Lightening discharges are natural source of production of SO2 & H2S pollutant (D) Sulphur dioxide causes death by asphyxiation

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Air pollution causes A. Global warming B. Respiratory problems C. Soil erosion D. None of thesea

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