FLASHCARD 3 Science: Earth and Space Section 1.4

Front

What word means 'a nourishing substance' that helps our bodies grow and stay healthy?

Back

nutrient

Front

What is the process by which nitrogen is moved from the air to the soil to be used by plants and then returned to the atmosphere to be used again?

Back

nitrogen cycle

Front

What type of bacteria convert nitrogen from the air into ammonia, nitrates, and other nitrogen compounds that plants can use?

Back

nitrogen-fixing (bacteria)

Front

What is the general term for a substance made up of only one type of atom?

Back

element

Front

Which type of bacteria is responsible for converting nitrates in the soil into atmospheric nitrogen?

Back

denitrifying (bacteria)

Front

Term: "a nourishing substance"

Back

nutrient

Front

What is the process by which nitrogen is moved from the air to the soil to be used by plants and then returned to the atmosphere to be used again?

Back

nitrogen cycle

Front

What type of bacteria helps convert nitrogen into ammonia, nitrates, and other nitrogen compounds that plants can use?

Back

nitrogen-fixing bacteria

Front

What is the general term for a substance made up of only one type of atom?

Back

element

Front

What type of bacteria converts nitrates in the soil into atmospheric nitrogen?

Back

denitrifying bacteria