Answer the following question given this paragraph: 

Climate conditions in a small area may be different from those of the surroundings. The climate of the small area is called a microclimate . The microclimate of a valley may be cool relative to its surroundings since cold air sinks. The ground surface may be hotter or colder than the air a few feet above it. This is because rock and soil gain and lose heat readily. Different sides of a mountain will have different microclimates. In the Northern Hemisphere, a south-facing slope receives more solar energy than a north-facing slope. Each side supports different amounts and types of vegetation.


Q: What is the climate of a small area called?

 Choices:

- ecosystem

- biome

- microevolution

- microclimate

A:
microclimate
