1. Abiotic factors ______.

are only important if they are large


cannot be studied


come in a variety of sizes and types


are all living things in an ecosystem


2. The temperatures in Siberia are very cold, and only certain organisms can live in this harsh environment. This is an example of ______.

a limiting biotic factor


a limiting abiotic factor


a controlling abiotic factor


a controlling biotic factor


3. Which of these statements about abiotic factors is true?

Biotic factors are not affected by abiotic factors.


Each abiotic factor can only be found in one type of ecosystem.


Categorizing abiotic factors is always straightforward.


Abiotic factors influence the survival of biotic factors.