The Underwater Rainforest

What is pigment?

• Pigment is the natural color of sand.

• Pigment is a natural color of plant and animal tissue.

• Pigment is the natural color of non-living things.

• Pigment is the natural color of the water.

What are the three stages of a coral reef in order?

• Barrier reef, Atoll, and Fringing reef

• Atoll, Barrier reef, and Fringing reef

• Sunlight, twilight, and midnight

• Fringing reef, Barrier reef, and Atoll

What are some animal and plants that live in a coral reef?

• sea urchin, sharks , eels, dogs, starfish

• sea urchins, shark, turtles, shrimp

• birds, sea otters, crabs, sea sponges

• sea sponges, cats, fish, eels, lobsters

How many years does it take for coral reefs to grow?

• exactly 30 million years

• about 300 years

• about 30 million years

• about 400 million years

Stony corals are mainly responsible to..........

• to build up the rock structures

• to build up the reefs structure

• I do not know

• a chemical found in sedimentary rocks

What is the meaning of cyanide?

• high explosive containing salt

• high explosive containing sugar

• hydrocyanic acid containing salt

• hydrocyanic containing sugar

What are the parts of the coral reefs used for?

• used as a cleaning product

• used for causing diseases

• used for medications and illnesses

How big can coral reefs range to?

• from a pinhead size to a bit larger than a basketball

• from a leaf size to bit larger than a basketball

• from a star size to bit larger than a basketball

• from a pinhead size to bit larger than a beetle

How long is the great barrier reef in mile span?

• 1,400 mile span

• about 1,200 mile span

• 1,200 mile span

• 2,100 mile span

What are coral reefs?

• delicate and beautiful rocks in the sea

• rigid rocks in the sea

• rigid rocks in the land

• are home for different animals and plants