Plants Grow from Air & Water

Question 1

Which two sources provide the materials that a plant needs to grow?

Accepted Answer

Air and water

Answer

Sunlight and soil

Answer

Soil minerals only

Answer

Carbon dioxide only

Question 2

Which statement best supports the claim that plants obtain the materials they need for growth chiefly from air and water?

Accepted Answer

Plants absorb carbon dioxide from the air and water from the soil, and use them to produce food.

Answer

Plants rely on rocks to provide the essential substances for growth.

Answer

Plants obtain the necessary materials for growth directly from sunlight.

Answer

Plants get most of their growth materials from the minerals in the soil.

Question 3

Which statement best supports the claim that the main materials plants need to grow come from air and water rather than from soil?

Accepted Answer

Plants absorb carbon dioxide from the air and water from the roots, then use sunlight to combine them into glucose, which supplies the carbon, hydrogen, and oxygen that make up most of a plant’s mass.

Answer

Plants take in oxygen from the air and use it to construct their leaves and stems, while water is only needed to keep the plant hydrated.

Answer

Plants get all the substances they need for growth directly from sunlight, which provides both energy and matter for building tissues.

Answer

Plants obtain most of their growth material from the mineral nutrients in soil, such as nitrogen and phosphorus, which are the building blocks of plant cells.

Try three questions

Which two sources provide the materials that a plant needs to grow?

Which statement best supports the claim that plants obtain the materials they need for growth chiefly from air and water?

Which statement best supports the claim that the main materials plants need to grow come from air and water rather than from soil?

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