2016 - Coral Reefs

Question 1

Most coral reefs are located between the tropics of…

Answer 1

Cancer and Capricorn in the Pacific Ocean.

Question 2

Coral reefs will only develop in waters warmer then 18 degrees and grow fastest in ____ degrees.

Answer 2

26 degrees.

Question 3

Coral reefs can grow a depth of 100m but are commonly found around 25-50m deep because of….

Answer 3

The sunlight intake needed for growth of coral.

Question 4

Coral areas require water free of sediment which means water free of…

Answer 4

Pollution.

Question 5

What water does coral reef need to grow.

Answer 5

Salt water.

Question 6

They are found on the _____ of the equator.

Answer 6

Side.

Question 7

What percent of the worlds location is made up of coral reef?

Answer 7

Less than one percent.

Question 8

Coral reefs are important because…

Answer 8

Provide habitat, protect coast from erosion, food source, contains cures for diseases, provides income through tourism.

Question 9

About how many percent of marine fish species live in coral reefs?

Answer 9

25%

Question 10

What sort of things influence the global locations of coral reefs?

Answer 10

Building along coastline, polluted runoff from farming, deforestation, fishing, ocean pollution, tourism developments.

Question 11

Why don’t coral reefs grow above the mean ride levels?

Answer 11

Because coral cannot survive long periods out of water.

Question 12

Why are reefs not found where rivers enter the ocean?

Answer 12

Because rivers release fresh water into the ocean.

Question 13

Coral reefs are called this because of their rich biodiversity.

Answer 13

Rainforests of the sea.

Question 14

What percent of coral reefs are under direct threat of human activity?

Answer 14

58%

Question 15

Biomes and their locations are strongly influenced by what 4 things?

Answer 15

Rainfall.
Temperature.
Latitude (how far it is from equator)
Typography (the shape and surface of land)

Question 16

What are coral polyps?

Answer 16

Tiny animals [upside down jellyfish.]
They live in colonies.
They cannot build the coral reef alone.

Question 17

What is zooxanthellae?

Answer 17

Zooxanthellae are tiny microscopic plants that transport sunlight into food and energy [photosynthesis] and help build minerals in the water into limestone structures.

Question 18

Coral polyps and zooxanthellae work together to form coral. This is know as a….

Answer 18

Symbiotic relationship. Need each other to live or complete a job. In this case creating a coral reef.

Question 19

Coral reefs are made up of ____________ structures.

Answer 19

Limestone.

Question 20

The skeleton of coral polyps is called…

Answer 20

Calcium carbonate. Which provides a hard structure that they can live on.

Question 21

Algae uses _______ products from the polyps such as carbon dioxide.

Answer 21

Waste products.

Question 22

There are 4 types of reef formations. What are they.

Answer 22

Fringing reefs.
Barrier reefs.
Atoll reefs.
Patch reefs.

Question 23

________ reefs grow near the coastline around islands and continents.

Answer 23

Fringing reefs.

Question 24

_________ reefs are located parallel to coastline and are usually found along the edge of the continental shelf.

Answer 24

Barrier reefs.

Question 25

_______ reefs form when islands surrounded by fringing reefs sink into the sear the sea level rises around them.

Answer 25

Atoll reefs.

Question 26

________ reefs are small isolated reefs that grow up from the bottom of the island platform or continental shelf and are in the middle of fringing and barrier reefs.

Answer 26

Patch reefs.