QUESTION 22 Based on the graph below, average annual surface temperatures are 0s

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QUESTION 22 Based on the graph below, average annual surface temperatures are 0s 02 02 o arising in the Northern Hemisphere but are unchanged in the Southern Hemisphere. ??.taling. o d remaining consistent QUESTION 23 Global climate is an example of a(n) o a unidirectional change b. static condition. O C. Earth system o d cyclic change QUESTION 24 Greenhouse gases are those that o a absorb energy that is reradiated from Earth's surface o b. exist in abundance in Earth's atmosphere. c. cause seasonal varatons o d occupy the azone layer QUESTION 25 Which of the following is MOST true of albedo? o a Decreases in albedo typically result in increased vegetation 0 b, increases in albed case coing. O C. Increases in albedo cause warming o d Decreases in albedo typically result in polar ice formation. Click Save and Submit to save and submit. Click Save All Anstcers to save all answers

Explanation / Answer

question no 22-

Answer -b. rising

Temprature in both the hemisphere is rising but in northern hemisphere more rapidly than southern hemisphere .

question no 23-

Answer- c. earth system

Global climate is a complex earth system that have many key components such that atmosphere , hydrosphere, lithosphere , biosphere ' cryosphere.

question no 24-

Answer- a. absorb energy that is reradiated fron the earth surface

Greenhouse gases are those which emits and absorb heat energy in thermal infrared range . This process of absorbtion and radiation of heat energy cause greenhouse effect . Some greenhouse gases are methane , carbondioxide ,water vapour ,nitrous oxide , ozone

Without these green house gases earth temprature would be about -15 degree celsius rather than 15 degree celsius

Question no 25-

Answer- b. Increases in albedo cause cooling

Albedo is define as the amount of sun radiation reflect back

Increase in albedo than it will be less absorbtion of sun heat energy

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