Question

1. temperatures are cooler when? *

the days are longer and the nights are shorter.
the days are shorter and the nights are longer.
when both the days and nights are short.
when both the days and nights are long.

Explanation:

To determine when temperatures are cooler, we analyze the relationship between day - night length and temperature. Shorter days mean less solar radiation (heat) from the Sun, and longer nights allow more time for heat to dissipate. In seasons like winter (in temperate regions), days are shorter and nights are longer, and temperatures are cooler.

• The option "The days are longer and the nights are shorter" is incorrect because longer days (like in summer) mean more solar heat, leading to warmer temperatures.
• The option "When both the days and nights are short" does not correspond to a typical seasonal pattern that results in cooler temperatures.
• The option "When both the days and nights are long" is also not a typical pattern associated with cooler temperatures.
• The option "The days are shorter and the nights are longer" matches the conditions (less heat input, more heat loss) that lead to cooler temperatures.

Answer:

B. The days are shorter and the nights are longer.