Coevolution of Earth's Systems

Earth's systems include:

• atmosphere

• hydrosphere

• cryosphere

• all answers are correct

The biosphere and Earth's other systems are:

• separated

• interconnected and co-evolving

• co-evolving

• interconnected

The regions of the surface, atmosphere, and hydrosphere of Earth occupied by living organisms is called:

• biosphere

• cryosphere

• lithosphere

• atmosphere

Earth's systems are a set of ___ physical, chemical, and biological processes.

• mutant

• separate

• interacting

• nonliving

Which is NOT affected by life on Earth?

• Earth's rotation

• cycles of matter

• atmospheric oxygen and carbon dioxide

• coastal areas

A major event in the evolution of life on Earth that affected the atmosphere directly was the appearance of:

• coral reef formation

• photosynthesis

• cellular respiration

• oceanic drift

The evolution of bacteria was key to _________________ which led to _____________________.

• soil formation, coral reefs

• land plants, soil formation

• soil formation, land plants

• microorganisms, land plants

Two effects of the evolution of coral reefs on land are:

• reduced wave erosion on coastlines, protection of wetlands from waves

• more carbon dioxide and oxygen amounts

• more clownfish and reduced wave erosion of wetlands

• more photosynthesis and less meteor impacts