Question

ACTIVITY SHEET IN SCIENCE 6
Directions: Write the letter of the correct answer
1. What do hard corals extract from seawater for their skeleton?
A. collagen
C. magnesium
B. calcium
D. sulfate
2. How do corals reproduce?
A. They don't reproduce
c. they reproduce sexually only
B they reproduce asexually only D. they reproduce asexually and
sexually
3. How do corals get their food?
A. by filter feeding only c. they don't get fed
B. by zooxanthellae only D. by filter-feeding and zooxanthella
4. How old are most coral reefs?
A. over 50 million years
C. 1,000 to 5,000 years
B. 10,000 to 15,000 years
D. 5,000 to 10,000 years
5. which of the following practices destroys the coral reefs.
A. Reforestation
C. information dessimination
B. Muro-Ami fishing D. making artificial reefs
6. How can you help in saving coral reefs if you're a grade 6
from the sea​

Answer 1

Answer:

ACTIVITY SHEET IN SCIENCE 6

Directions: Write the letter of the correct answer

1. What do hard corals extract from seawater for their skeleton?

A. collagen

C. magnesium

B. calcium

D. sulfate

2. How do corals reproduce?

A. They don't reproduce

c. they reproduce sexually only

B they reproduce asexually only D. they reproduce asexually and

sexually

3. How do corals get their food?

A. by filter feeding only c. they don't get fed

B. by zooxanthellae only D. by filter-feeding and zooxanthella

4. How old are most coral reefs?

A. over 50 million years

C. 1,000 to 5,000 years

B. 10,000 to 15,000 years

D. 5,000 to 10,000 years

5. which of the following practices destroys the coral reefs.

A. Reforestation

C. information dessimination

B. Muro-Ami fishing D. making artificial reefs

6. How can you help in saving coral reefs if you're a grade 6

from the sea