Question

what impact does the melting of ice caps have on temperatures?
a. it reduces levels of snowfall in mountain regions
b. it causes a decrease in sea surface temperatures
c. it accelerates warming due to heat absorption
d. it stabilizes seasonal changes in rainfall
how does deforestation contribute to climate change?
a. it cools down coastal areas
b. it decreases temperatures in urban environments
c. it increases carbon dioxide and heat levels
d. it stabilizes local atmospheric conditions

Explanation:

First Question (Melting of Ice Caps Impact on Temperatures)

• Option a: Snowfall in mountain regions is not directly related to ice cap melting's impact on temperatures.
• Option b: Melting ice caps add fresh water, but sea surface temperature decrease is not a direct result of ice cap melting's temperature impact.
• Option c: Ice (white) reflects sunlight (albedo effect). When ice melts, darker ocean/land absorbs more heat, accelerating warming. This matches the impact on temperature.
• Option d: Ice cap melting disrupts, not stabilizes, rainfall patterns.

• Option a: Deforestation doesn't cool coastal areas; trees help regulate climate, so their loss warms, not cools.
• Option b: Urban temperatures increase with deforestation (less shading, more heat absorption), so decreasing temperatures is wrong.
• Option c: Trees absorb CO₂. Deforestation reduces CO₂ absorption, increases CO₂ in the atmosphere, and less transpiration leads to higher heat (since trees cool via transpiration), increasing heat levels. This is correct.
• Option d: Deforestation disrupts, not stabilizes, atmospheric conditions.

Answer:

c. It accelerates warming due to heat absorption

Second Question (Deforestation and Climate Change)