Unit 5

Question 1

Agricultural Pollution

Answer 1

pollution from rural areas where few people live

Question 2

Aquaculture

Answer 2

the cultivation of aquatic organisms (as fish or shellfish) especially for food; fish farming.

Question 3

Aquifer

Answer 3

an underground water system made of porous rock and sand

Question 4

Bottom Trawling

Answer 4

fishing method that involves towing trawl nets along the sea floor.

Question 5

By-Catch

Answer 5

unwanted marine creatures that are caught in the nets while fishing for another species.

Question 6

Groundwater

Answer 6

water that percolates through the surface and is retained in underlying rock and soil

Question 7

Herbicides

Answer 7

chemicals used to kill weeds

Question 8

Pesticides

Answer 8

chemical substances applied to plants to keep insects away

Question 9

Saltwater Intrusion

Answer 9

when water from the ocean infiltrates an aquifer because water is being pumped from the aquifer

Question 10

Sediment Pollution

Answer 10

pollution that occurs when loose soil is carried into bodies of water by rain

Question 11

Storm-water Runoff

Answer 11

rainwater that does not soak into the ground and carries pollution into bodies of water

Question 12

Surface Runoff

Answer 12

precipitation that drains across the land into lakes, streams, or rivers

Question 13

Surface Water

Answer 13

water that lays on the earth’s surface. Surface water includes water in rivers, lakes, streams, creeks, ponds, and wetlands

Question 14

Transpiration

Answer 14

the process by which water is released from plans leaves

Question 15

Watershed

Answer 15

an area of land over which water flows to reach a common body of water such as a lake or pond

Question 16

Well

Answer 16

a hole that is drilled into the aquifer