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How is usable nitrogen obtained by animals?

◯ A. They get it from the soil.

◯ B. They produce it in their chloroplasts.

◯ C. They get it by eating plants.

◯ D. They breathe it in from the air.

Which of Earth's spheres are involved in a water cycle?

◯ A. Hydrosphere, atmosphere, lithosphere, and biosphere

◯ B. Hydrosphere, atmosphere, and biosphere only

◯ C. Hydrosphere and atmosphere only

◯ D. Hydrosphere, atmosphere, and lithosphere only

Which phrase best describes a biogeochemical cycle?�

◯ A. The movement of the chemical substance through Earth's bodies of water.

◯ B. The movement of the chemical substance between plants and animals.

◯ C. The movement of the chemical substance between the solid, liquid, and gaseous states of matter.

◯ D. The movement of the chemical substance through the biotic and abiotic parts of the Earth.

A certain wood stove has a firebox volume of 0.12 m^3. What firebox volume would be expected if all the dimensions of the stove were increased by a factor of 2.25? aver your answer to 2 decimal place.