The Montreal Protocol 1987 refers to (1) saving the Bio-diversity of our planet (2) signing of an accord on the peaceful uses of atmoic energy (3) signing of an accord on keeping the antarctica as a nuclear free zone (4) saving the ozone layer from destruction by reducting the use of CFCs

The Montreal Protocol 1987 refers to (1) saving the Bio-diversity of our planet (2) signing of an accord on the peaceful uses of atmoic energy (3) signing of an accord on keeping the antarctica as a nuclear free zone (4) saving the ozone layer from destruction by reducting the use of CFCs
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 saving the ozone layer from destruction by reducting the use of CFCs
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The Montreal Protocol 1987 refers to – (1) saving the Bio-diversity of our planet (2) signing of an accord on the peaceful uses of atomic energy (3) signing of an accord on keeping the antarctica as a nuclear free zone (4) saving the ozone layer from destruction by reducting the use of CFCs

Description : The Montreal Protocol 1987 refers to – (1) saving the Bio-diversity of our planet (2) signing of an accord on the peaceful uses of atomic energy (3) signing of an accord on keeping the antarctica as a nuclear free zone (4) saving the ozone layer from destruction by reducting the use of CFCs

Last Answer : (4) saving the ozone layer from destruction by reducting the use of CFCs Explanation: The Montreal Protocol on Substances that Deplete the Ozone Layer (a protocol to the Vienna Convention for the ... entered into force on January 1, 1989, followed by a first meeting in Helsinki. May 1989.

As a result of which treaty, ozone hole in Antarctica is slowly healing? A. Koyoto protocol B. Ottawa treaty C. Montreal protocol (Answer) D. Oslo Accord

Description : As a result of which treaty, ozone hole in Antarctica is slowly healing? A. Koyoto protocol B. Ottawa treaty C. Montreal protocol (Answer) D. Oslo Accord

Last Answer : C. Montreal protocol (Answer)

Montreal Protocol 1987 was-----? A. Treaty among nations to reduce nuclear arsenals B. Climate control treaty C. Treaty to protect ozone layer (Answer) D. Trade policy about tarrifs

Description : Montreal Protocol 1987 was-----? A. Treaty among nations to reduce nuclear arsenals B. Climate control treaty C. Treaty to protect ozone layer (Answer) D. Trade policy about tarrifs

Last Answer : C. Treaty to protect ozone layer (Answer)

Number of ozone depleters identified by Montreal Protocol (1987) was

Description : Number of ozone depleters identified by Montreal Protocol (1987) was

Last Answer : Number of ozone depleters identified by Montreal Protocol (1987) was A. 72 B. 18 C. 96 D. 40

Montreal protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year:

Description : Montreal protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year:

Last Answer : Montreal protocol which calls for appropriate action to protect the ozone layer from human activities was passed in ... . 1985 B. 1986 C. 1987 D. 1988

Montreal protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year:

Description : Montreal protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year:

Last Answer : Montreal protocol which calls for appropriate action to protect the ozone layer from human activities was passed in ... . 1988 B. 1985 C. 1986 D. 1987

The class of compounds implicated in the Antarctic ozone destruction is: w) RBC's x) DDT's y) CFC's z) PCB's

Description : The class of compounds implicated in the Antarctic ozone destruction is: w) RBC's x) DDT's y) CFC's z) PCB's

Last Answer : ANSWER: Y -- CFC'S

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.

The enormous amount of energy released in an explosion of an atmoic bomb is due to the (1) conversion of mass into energy (2) conversion of chemical energy into heat energy (3) conversion of mechnical energy into nuclear energy (4) conversion of neutrons into protons

Description : The enormous amount of energy released in an explosion of an atmoic bomb is due to the (1) conversion of mass into energy (2) conversion of chemical energy into heat energy (3) conversion of mechnical energy into nuclear energy (4) conversion of neutrons into protons

Last Answer :  conversion of neutrons into protons

The word Biosphere refers to : (1) Zone of soil, water and air around earth capable of supporting the flora and fauna. (2) Part of earth surface which can support the flora (3) Parts of air around earth a where life can exist (4) Zone of water on earth which can support life.

Description : The word Biosphere refers to : (1) Zone of soil, water and air around earth capable of supporting the flora and fauna. (2) Part of earth surface which can support the flora (3) Parts of air around earth a where life can exist (4) Zone of water on earth which can support life.

Last Answer : Zone of soil, water and air around earth capable of supporting the flora and fauna. 

Ozone layer is formed due to reactions of : (1) oxygen and ultraviolet rays (2) carbon dioxide and layers of atmosphere (3) cosmic rays and layers of atmosphere (4) infrared rays and ultraviolet rays

Description : Ozone layer is formed due to reactions of : (1) oxygen and ultraviolet rays (2) carbon dioxide and layers of atmosphere (3) cosmic rays and layers of atmosphere (4) infrared rays and ultraviolet rays 

Last Answer : oxygen and ultraviolet rays

Which layer of the earth’s atmosphere contains the ozone layer ? (1) Troposphere (2) Mesosphere (3) Ionosphere (4) Stratosphere

Description : Which layer of the earth’s atmosphere contains the ozone layer ? (1) Troposphere (2) Mesosphere (3) Ionosphere (4) Stratosphere

Last Answer : Stratosphere

9. Montreal protocol aims at a) biodiversity conservation b) reduction of ozone depleting substances c) control of water pollution d) control of carbondioxide emission

Description : 9. Montreal protocol aims at a) biodiversity conservation b) reduction of ozone depleting substances c) control of water pollution d) control of carbondioxide emission

Last Answer : a) biodiversity conservation

Why would it take years for the ozone layer to recover even though the use of CFCs has declined significantly?

Description : Why would it take years for the ozone layer to recover even though the use of CFCs has declined significantly?

Last Answer : It is considered that burning fossil fuels is allowing carbon dioxide gas (CO2) to build up in the ozone layer, and is the main cause of global warming.

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.

Description : 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 ... utilisation of its benefits (d) to assess threat posed to native species by invasive weed species.

Last Answer : (c) for conservation of biodiversity and sustainable utilisation of its benefits

What are CFC’s? How do they damage ozone layer?

Description : What are CFC’s? How do they damage ozone layer?

Last Answer : CFC stands for chloro-fluoro carbons. It is a product of industrial processes involved in the manufacturing of insulating foams, solvents, cooling equipments like refrigerators, air conditioners. It ... CFC in the stratosphere into chlorine atoms. Chlorine reacts with ozone and breaks into oxygen

Which element in chlorofluorocarbons (CFCs) is responsible for destroying the Earth's ozone layer? w) oxygen x) fluorine y) chlorine z) bromine

Description : Which element in chlorofluorocarbons (CFCs) is responsible for destroying the Earth's ozone layer? w) oxygen x) fluorine y) chlorine z) bromine

Last Answer : ANSWER: Y -- CHLORINE

The Montreal Protocol refers to:

Description : The Montreal Protocol refers to:

Last Answer : The Montreal Protocol refers to: A. Substances that deplete ozone layer B. Persistent ... change D. Biosafety of genetically modified organisms

Ice glacier’s melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in (1) Greenland (2) Antarctica (3) Himalayas (4) Arctic

Description : Ice glacier’s melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in (1) Greenland (2) Antarctica (3) Himalayas (4) Arctic

Last Answer : Antarctica

‘Green Accounting’ means measuring the National Income of the country taking into account estimation of (1) the total forest area of the country (2) the destruction of forest cover of the country (3) pollution and environmental damage (4) area of reclaimed fallow land

Description : ‘Green Accounting’ means measuring the National Income of the country taking into account estimation of (1) the total forest area of the country (2) the destruction of forest cover of the country (3) pollution and environmental damage (4) area of reclaimed fallow land 

Last Answer : pollution and environmental damage 

With what bio-region is the term ‘‘Steppe’’ associated ? (1) Grasslands (2) Tropical forests (3) Savanna (4) Coniferous forests

Description : With what bio-region is the term ‘‘Steppe’’ associated ? (1) Grasslands (2) Tropical forests (3) Savanna (4) Coniferous forests

Last Answer : Grasslands

Which planet in our solar system is nearly as big as the earth ? (1) Mercury (2) Mars (3) Venus (4) Pluto

Description : Which planet in our solar system is nearly as big as the earth ? (1) Mercury (2) Mars (3) Venus (4) Pluto

Last Answer : Venus

The largest planet in our solar system is (1) Mars (2) Jupiter (3) Saturn (4) Mercury

Description : The largest planet in our solar system is (1) Mars (2) Jupiter (3) Saturn (4) Mercury

Last Answer : Jupiter

Brightest planet in our solar system is (1) Venus (2) Mercury (3) Mars (4) Jupiter

Description : Brightest planet in our solar system is (1) Venus (2) Mercury (3) Mars (4) Jupiter

Last Answer : Venus

The massive hole in the ozone layer over the Antarctica was first discovered in which year? -Do You Know?

Description : The massive hole in the ozone layer over the Antarctica was first discovered in which year? -Do You Know?

Last Answer : answer:

The massive hole in the ozone layer over the Antarctica was first discovered in which year?

Description : The massive hole in the ozone layer over the Antarctica was first discovered in which year?

Last Answer : 1985

How has human activity led to the destruction of the ozone layer?

Description : How has human activity led to the destruction of the ozone layer?

Last Answer : The release of cfcs from fridges n aerosol can and smoke thatcomes from industries are human that led to the distruction ofozone layer..by zintle mambi

Kyoto Protocol is related to (A) Ozone depletion (B) Hazardous waste (C) Climate change (D) Nuclear energy

Description : Kyoto Protocol is related to (A) Ozone depletion (B) Hazardous waste (C) Climate change (D) Nuclear energy

Last Answer : (C) Climate change

The food chain refers to the transfer of energy from : (1) the interior of the earth to the surface (2) lower to higher latitudes (3) one organism to another (4) organisms of the land to those of the sea by means of river

Description : The food chain refers to the transfer of energy from : (1) the interior of the earth to the surface (2) lower to higher latitudes (3) one organism to another (4) organisms of the land to those of the sea by means of river

Last Answer : one organism to another

Is the destruction of all humanity still possible without nuclear wars, a dead Sun and planet killing asteroids?

Description : Is the destruction of all humanity still possible without nuclear wars, a dead Sun and planet killing asteroids?

Last Answer : answer:As slight and as improbable as it is, we could just wage a world war that ends in everyone pretty much wiping each other out. Or some country goes Spanish Inquisition on everyone and as a grand ... after wiping every heretic of the face of the earth. Just takes a wee bit of imagination.

Which one of the following is a greenhouse gas? (1) Oxygen (2) Nitrogen (3) Carbon-di-Oxide (4) Ozone

Description : Which one of the following is a greenhouse gas? (1) Oxygen (2) Nitrogen (3) Carbon-di-Oxide (4) Ozone 

Last Answer : Carbon-di-Oxide

Ultraviolet radiation in the stratosphere is absorbed by (1) SO2 (2) Ozone (3) Oxygen (4) Argon

Description : Ultraviolet radiation in the stratosphere is absorbed by (1) SO2 (2) Ozone (3) Oxygen (4) Argon 

Last Answer : Ozone

Most of the ozone in the earth’s atmosphere is found in the : (1) Troposphere (2) Stratosphere (3) Mesophere (4) Thermosphere

Description : Most of the ozone in the earth’s atmosphere is found in the : (1) Troposphere (2) Stratosphere (3) Mesophere (4) Thermosphere

Last Answer : Stratosphere

Ozone-hole in the atmosphere is largely caused by the presence of (1) Oxygen (2) Hydrogen (3) Chloro-floro-carbon (4) Radio-active waste

Description : Ozone-hole in the atmosphere is largely caused by the presence of (1) Oxygen (2) Hydrogen (3) Chloro-floro-carbon (4) Radio-active waste

Last Answer : Chloro-floro-carbon

Which one is not a non-conventional energy source? (1) Nuclear energy (2) Solar Energy (3) Wind energy (4) Tidal power

Description : Which one is not a non-conventional energy source? (1) Nuclear energy (2) Solar Energy (3) Wind energy (4) Tidal power

Last Answer : Nuclear energy

The zone of Earth’s atmosphere immediately above its surface up to a height of about 16 kms above equator and 8 kms over the poles is known as : (1) Mesosphere (2) Thermosphere (3) Troposphere (4) Stratosphere

Description : The zone of Earth’s atmosphere immediately above its surface up to a height of about 16 kms above equator and 8 kms over the poles is known as : (1) Mesosphere (2) Thermosphere (3) Troposphere (4) Stratosphere

Last Answer : Troposphere

The rate of deforestation is high in (1) Tropical zone (2) Desert areas (3) Temperate zone (4) Boreal forest

Description : The rate of deforestation is high in (1) Tropical zone (2) Desert areas (3) Temperate zone (4) Boreal forest

Last Answer : Temperate zone

Equator represents (1) line joining North and South poles (2) imaginary line passing round the Earth midway between North & South poles (3) a belt (ring) around the planet Saturn (4) axis of rotation of Earth

Description : Equator represents (1) line joining North and South poles (2) imaginary line passing round the Earth midway between North & South poles (3) a belt (ring) around the planet Saturn (4) axis of rotation of Earth

Last Answer : imaginary line passing round the Earth midway between North & South poles

Which of the following Scientist proved that the path of each planet around the Sun is elliptical? (1) Kepler (2) Galileo (3) Newton (4) Copernicus

Description : Which of the following Scientist proved that the path of each planet around the Sun is elliptical? (1) Kepler (2) Galileo (3) Newton (4) Copernicus

Last Answer : Kepler

The planet which has the highest surface temperature is (1) Jupiter (2) Earth (3) Pluto (4) Venus

Description : The planet which has the highest surface temperature is (1) Jupiter (2) Earth (3) Pluto (4) Venus

Last Answer : Venus

Which of the following is called “Blue Planet” ? (1) Saturn (2) Earth (3) Jupiter (4) Mars

Description : Which of the following is called “Blue Planet” ? (1) Saturn (2) Earth (3) Jupiter (4) Mars

Last Answer : Earth

The planet that takes 88 days to make one revolution of the sun is : (1) Mercury (2) Saturn (3) Jupiter (4) Mars

Description : The planet that takes 88 days to make one revolution of the sun is : (1) Mercury (2) Saturn (3) Jupiter (4) Mars

Last Answer : Mercury

The planet nearest to the Sun is : (1) Earth (2) Mercury (3) Mars (4) Venus

Description : The planet nearest to the Sun is : (1) Earth (2) Mercury (3) Mars (4) Venus

Last Answer : Mercury

Which one of the following is the largest planet ? (1) Jupiter (2) Venus (3) Saturn (4) Uranus

Description : Which one of the following is the largest planet ? (1) Jupiter (2) Venus (3) Saturn (4) Uranus

Last Answer : Jupiter

Which planet looks reddish in the night sky ? (1) Jupiter (2) Saturn (3) Mars (4) Mercury

Description : Which planet looks reddish in the night sky ? (1) Jupiter (2) Saturn (3) Mars (4) Mercury

Last Answer : Mars

Which planet orbits closest to the earth? (1) Mars (2) Jupiter (3) Venus (4) Mercury

Description : Which planet orbits closest to the earth? (1) Mars (2) Jupiter (3) Venus (4) Mercury

Last Answer : Venus

The planet emitting green light is (1) Jupiter (2) Venus (3) Uranus (4) Neptune

Description : The planet emitting green light is (1) Jupiter (2) Venus (3) Uranus (4) Neptune

Last Answer : Uranus

The planet revolving east to west is (1) Venus (2) Uranus (3) Neptune (4) Pluto

Description : The planet revolving east to west is (1) Venus (2) Uranus (3) Neptune (4) Pluto

Last Answer : Venus

Which planet is called evening star? (1) Mars (2) Mercury (3) Venus (4) Jupiter

Description : Which planet is called evening star? (1) Mars (2) Mercury (3) Venus (4) Jupiter

Last Answer : Venus

Biggest planet of solar system is (1) Earth (2) Mars (3) Saturn (4) Jupiter

Description : Biggest planet of solar system is (1) Earth (2) Mars (3) Saturn (4) Jupiter

Last Answer : Jupiter