The five distant planets are made mostly of....

Earth can support life because of the presence of

Earth's fairly steady surface temperature is due to the presence of

Fossils are usually found in

More than 97 percent of the hydrosphere is

Aquifers transport

The most abundant gas in Earth's atmosphere

The ozone layer is part of the

A bird interacts primarily with the

Layer of the atmosphere where rainstorms occur

Organism is

Lithosphere

Atmosphere

Hydrosphere

Ecology

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