Unit 2: Biogeochemical Cycles Review

How is the nitrogen cycle important to humans?

• It produces free nitrogen that humans can breathe.

• It converts nitrogen into a form that humans can obtain by eating other organisms.

• It produces nitrogen compounds that humans can breathe.

• It converts nitrogen into a form that humans can obtain by absorbing it through their skin.

Tags

NGSS.MS-LS2-3

Which phrase best describes the biosphere?

• the rocks on land and in the water

• the plants on land and in the water

• the animals in the air, on land, and in the water

• the organisms in the air, on land, and in the water

Tags

NGSS.MS-LS2-4

Which interaction involves only one of Earth’s spheres?

• Plant roots take in water from the soil.

• Plants take in carbon dioxide from the air.

• During photosynthesis, plants make food and release oxygen into the air.

• Energy stored in plants is transferred to humans and animals that eat them.

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Some bacteria live in the roots of plants like soybeans and peas. What is the role of these bacteria in the nitrogen cycle?

• to absorb nitrogen-containing compounds from the soil

• to release free nitrogen into the atmosphere

• to break down nitrogen-containing compounds in dead organisms

• to convert free nitrogen into usable nitrogen

Kate wrote the steps of the carbon cycle to describe how carbon is cycled through specific organisms. The steps are in random order. Which lists the steps in order?

• 2, 3, 1, 4

• 3,2,1,4

• 3,4,2,1

• 2,4,3,1

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A rock collection comes from which part of Earth?

• atmosphere

• biosphere

• geosphere

• hydrosphere

Tags

NGSS.MS-ESS2-2

The cryosphere is part of which sphere of the Earth system?

• atmosphere

• biosphere

• geosphere

• hydrosphere

Tags

NGSS.MS-ESS2-4

When a volcano erupts, tiny particles from which of Earth’s spheres are released into the air?

• atmosphere

• biosphere

• geosphere

• hydrosphere

Tags

NGSS.MS-ESS3-2

Which phrase describes one main feature of the atmosphere?

• protects Earth's surface

• includes organisms in the air, on land, and in water

• consists of rock, minerals, landforms, and Earth's interior

• comprises oceans, lakes, rivers, streams, and groundwater

Which phrase describes one main feature of the hydrosphere?

• protects Earth's surface

• includes organisms in the air, on land, and in water

• consists of rock, minerals, landforms, and Earth's interior

• comprises oceans, lakes, rivers, streams, and groundwater