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importance of the coral reef

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

Coral reefs are often found in shallow waters.

a)

True

b)

False

2.

The earth is mostly made up of...

a)

water

b)

land

c)

trees

3.

Why don't coral reefs grow well below 130 feet?

a)

because the water is too warm below 130 feet

b)

because coral reefs need sunshine

c)

because the water is dirty

4.

How long does it take for coral reefs to grow up to 3 feet?

a)

10 years

b)

100 years

c)

1000 years

5.

What is one big threat to coral reefs?

a)

sharks

b)

pollution

c)

turtles

d)

anemones

6.

Shallow means...

a)

deep

b)

not deep

7.

What are coral reefs often compared to?

a)

forests

b)

gardens

c)

rainforests

d)

deserts

8.

Coral reefs are endangered by

a)

climate change

b)

overfishing

c)

pollution

d)

all of the above

9.

Coral Reefs are found in

a)

tropical waters

b)

waters around the South pole only

c)

sub-tropical waters

d)

A and C

10.

Coral reefs are home to how many species?

a)

thousands

b)

billions

c)

hundreds

d)

millions

11.
What are the two kinds of coral?
a)
Blue and yellow
b)
Hard and slimy
c)
Hard and soft
d)
Soft and delicate
12.

Coral reefs are easily damaged by disease and ...

a)

animals

b)

plants

c)

human

d)

salt

13.

What do coral reefs look like?

(a)  

14.

What are corals?

(a)  

15.

What do the soft corals look like?

(a)  

16.

What does the lionfish look like?

(a)  

17.

Is the coral reef dangerous?

(a)