Which of the following is a way that nitrogen atoms move from a nonliving part of the environment into a living part of the environment? Select one:

Bacteria changing nitrogen in dead animals and plants that can then be absorbed by plants.

Animals consuming nitrogen in plant tissues.

Animals exhaling nitrogen gas into the atmosphere.

Bacteria changing nitrogen gas into ammonia that can then be absorbed by plants.

20 brainliest for whoever answers correctly and answers all choose the statements that accurately describe china's "one child policy." china's "one child policy" began as soon as the communists came to power. the "one child policy" was meant to keep the population from reaching 700 million. the "one child policy" was meant to slow china's population growth. the "one child policy" began as a result of the country's war with japan. some people were allowed to have more than one child. the "one child policy" began in 1979. the "one child policy" was most enforced in urban areas. the "one child policy" ended at the start of 2016. china's population is current just under 1 billion people.

Write a short paragraph of about 150-300 words. explain how the physical environment can limit human activities.

What happens to rock when acid reacts with it?