Question

1. which of the statement is true about increasing land and ocean temperature?

a decrease in global land and ocean temperatures will result in lower rates of evaporation.
a decrease in global land and ocean temperatures will result in higher rates of precipitation.
an increase in global land and ocean temperatures will result in higher rates of evaporation.
an increase in global land and ocean temperatures will result in lower rates of condensation

Explanation:

To determine the true statement, we analyze the relationship between temperature and processes like evaporation, precipitation, and condensation:

• Evaporation is the process of liquid turning to gas (water vapor). Temperature is a key factor affecting evaporation—higher temperature provides more energy to water molecules, increasing the rate of evaporation.
• Precipitation (rain, snow, etc.) is related to condensation and cloud formation. A decrease in temperature generally leads to less evaporation (since lower temp means less energy for water to turn to vapor), which would lead to less water vapor available for condensation and thus lower precipitation, not higher.
• Condensation is the process of gas turning to liquid (forming clouds, dew, etc.). Higher temperature actually increases the amount of water vapor the air can hold (higher saturation vapor pressure), but the rate of condensation is more related to cooling (like when warm, moist air rises and cools). However, an increase in temperature increases evaporation, leading to more water vapor, which can potentially lead to more condensation if conditions for cooling exist, but the main relationship with temperature for evaporation is direct.

Now let's evaluate each option:

• Option A: Talks about a decrease in temperature leading to lower evaporation. While this is true, the question is about "increasing" land and ocean temperature, so this is not the focus here.
• Option B: A decrease in temperature would lead to less evaporation, less water vapor, and thus lower precipitation, not higher. So this is false.
• Option C: An increase in temperature gives water molecules more energy, so more liquid water turns to vapor—this means higher rates of evaporation. This matches the relationship between temperature and evaporation.
• Option D: An increase in temperature increases evaporation (more water vapor), and if there's enough cooling, condensation rates could increase (since there's more vapor to condense). So saying an increase in temperature leads to lower condensation is false.

So the correct statement is about the increase in temperature leading to higher evaporation.

Answer:

C. An increase in global land and ocean temperatures will result in higher rates of evaporation