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

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

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-ESS1-4

NGSS.MS-ESS2-1

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

Tags

NGSS.MS-ESS2-4