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Activity #6: Gulf of Mexico - Dead Zone

Last updated 6 months ago

19 questions

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Read or listen to activity #6 (pg 27) reading in the book and answer the following questions!

Question 1

1.

Question 2

2.

A. Too much salt in the water

B. Warm ocean currents

C. Excess nutrients in the water

D. Lack of predators

Question 3

3.

Question 4

4.

A. The water becomes too cold

B. There is not enough food

C. The bacteria use up most of the oxygen

D. The phytoplankton attack them

Question 5

5.

A. They help clean the water

B. They use oxygen as they feed on dead phytoplankton

C. They protect the fish from pollution

D. They reduce the nutrient levels

Question 6

6.

A. A type of fish that lives in rivers

B. A hole in the ground where rivers form

C. An area of land where water drains into rivers

D. A container used to collect river water

Question 7

7.

A. Fishing

B. Farming

C. Logging

D. Building dams

Question 8

8.

A. The water is colder there

B. There are more boats and people

C. The slow-moving river water drops nutrients near the shore

D. Fish gather in that area to lay eggs

Question 9

9.

A. About the size of New York

B. About the size of Connecticut

C. About the size of California

D. About the size of Texas

Question 10

10.

A. Fish leave the area

B. More rain washes away nutrients

C. Bacteria grow faster in warm water

D. The water freezes

Question 11

11.

A. It has stayed the same

B. It has decreased slowly

C. It has doubled

D. It has nearly tripled

Question 12

12.

A. Pollution from factories

B. A natural lack of water mixing

C. Too many fish in one area

D. Water freezing over during winter

Question 13

13.

A. Stronger storms

B. Melting glaciers

C. Human activities like farming and burning fuels

D. More swimming and boating

Question 14

14.

A. Broken bones

B. Sunburn

C. Health problems for animals and people

D. Better skin

Question 15

15.

A. They help fish grow larger

B. They make the water warmer

C. They reduce the number and size of organisms

D. They create more food for ocean animals

Question 16

16.

A. Fishermen are not allowed to fish anymore

B. There are fewer fish to catch

C. Boats can’t enter dead zones

D. Fish taste bad in these areas

Question 17

17.

A. Warmer weather

B. A decrease in farming and better management

C. A new type of fish introduced

D. Pollution added on purpose

Question 18

18.

A. Use more water

B. Use more fertilizer

C. Walk or bike instead of using cars

D. Take more trips to the beach

Question 19

19.

A. Build more roads

B. Cut down trees near rivers

C. Replace hard surfaces with plants or stones

D. Build taller buildings

Vocabulary Review: Matching

A chemical or natural substance added to soil to help improve plant growth

Like a bowl, it is a dip in water's surface

A near-shore area of water with little to no oxygen, thus very few organisms.

When too many nutrients, like Nitrogen or phosphorus, are added to a body of water and cause an excess growth of algae

Fertilizer

Dead zones

Nutrient run off

Basin