Earth Science Check In questions

What factor determines the amount of gas that can disolve in ocean water?

• motion of air above

  the ocean water

• the motion of the ocean water currents

• the temperature of the air above the ocean

• the temperature of the ocean

A scientist is testing the affect of ammonia on fresh water. The scientist collects a sample from a large lake and pours it into a fish tank. Then ammonia is allowed to drip into the fish tank at a constant rate. The table shows the data from this experiment.

• Ammonia is a base and can decrease pollution in a lake.

• Ammonia is an base and it can increase the nitrate oollution in the lake.

• Ammonia is an acid and it can decrease nitrate pollution in the lake.

• Ammonia is an acid and it can incrrease the pollution in the lake.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-PS1-2

Which pH is a base?

• 1

• 3

• 7

• 14

Which pH is an acid?

• 1

• 7

• 9

• 14

Which pH is neutral?

• 1

• 7

• 14

A geologist studies a rock wall of 3 sedimentary rock layers. Here are the geologist observations-

The top layer is composed of sandstone.

The second layer is made of tuff, rock made of volcanic ash.

The bottom layer is composed of conglomerate.

Which best matches the geologists data?

• The conglomerate fromed after a volcanic eruption.

• The sandstone fromed after the volcanic eruption.

• The conglomerate was turned into sandstone by the volcanic eruption.

• The volcanic eruption cause some sandstome into conglomerate.

conglomerate is

• rock of all the same substance

• rock from a variety of different substances.

Phytoplanktin are primary producers that live just below the earth's surface. Why are they important to the world climate?

• Phytoplankton absorb atmospheric carbon dioxide thereby reducing the amount of carbon dioxide in the atmosphere.

• Phytoplankton increase the acidity of ocean water by absorbing carbon dioxide.

• Phytoplankton reduce the effects of fossil fuel use by using sulfur dioxide.

• Phytoplankton provide a protein sourse for animals by converting nitrogen into nitrogen oxide.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

An increasing global population is putting stress on global fresh water supplies. Which process would increase the availablility of freshwater?

• desalination

• condensation

• evaporation

• sedimantation

Tags

NGSS.MS-ETS1-3

Sunlight is not available in the deep ocean. Yet, there are food webs not dependent on the sunlight. Explain how this happens.

• Currents carry plants to the deep ocean.

• The deep ocean and thermal vents have non-photosynthetic algea as the base of the food web.

• Photosynthesis can take place without sun light.

• All the animals that live in the deep ocean can photosynthesize.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3