The nonliving parts of an ecosystem is

The living organisms in an ecosystem are the

All living and nonliving things in the environment is a(n)

Which is NOT a biotic factor?

Which is NOT an abiotic factor in an ecosystem?

A layer of gases that surrounds Earth is called the

Weather conditions in an area over a long time period is

A loose mixture of rock fragments, organic material, water, and air is known as

The source of almost all energy on Earth is

What requires all life requires it, most organisms are made of it, and it's needed for life processes?

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