Q. Anthropogenic sources of carbon dioxide are 20 times greater than natural carbon dioxide sources.

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Q. What is the reason for extreme difference in temperatures at day and night in deserts?

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Q. What does the method of “enhanced weathering” infer?

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Q. What does the process of carbon sequestration mean?

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Q. Which of the following is a sink for carbon?

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Q. Which of the following greenhouse gas is contributed by cattle farming?

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Q. Volcanic eruptions contribute to the global greenhouse phenomenon.

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Q. What is the average concentration of ozone in the ozone layer of the atmosphere?

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Q. Who discovered the ozone layer?

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Q. Which of the following devices can be used to measure ozone in the stratosphere from the ground?

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Q. The ozone layer absorbs what range of wavelengths of the sun’s radiation?

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Q. Who discovered the formation of ozone from photochemical reactions?

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Q. Between what altitudes, is the ozone layer found in highest concentrations?

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Q. Nitrogen also helps in preventing UV rays from reaching the Earth.

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Q. Which of the following UV radiations is responsible for causing sun burns and skin cancer?

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Q. The long UV-B radiations are important for vitamin D production of the skin.

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Q. In which season is the ozone found at its maximum level in the northern hemisphere?

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Q. When was the ozone hole discovered?

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Q. The ozone hole is a phenomenon that has occurred in:

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Q. Which of the following chemicals are responsible for the depletion of the stratospheric ozone layer?

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