L03 - Test Yourself

Question 1

Why is it hard to protect marine biodiversity?

Answer 1

• Much of the damage in the ocean is not visible.
• The oceans are incorrectly viewed as an inexhaustible resource!!.
• Most of the ocean lies outside the legal jurisdiction of any country
  (the high seas)…”tragedy of the commons”.

Question 2

TRUE OR FALSE:

The global level of coral reefs has been declining over the years.

Question 3

TRUE OR FALSE:

Coral reefs have no significant impact on marine biodiversity and bio
resources?

Question 4

TRUE OR FALSE:

Mangroves are grown in salt waters in coastal areas in tropic and
subtropics regions.

Question 5

TRUE OR FALSE:

Sea grass is mainly grown in deep waters.

Question 6

TRUE OR FALSE:

Marine biodiversity is threatened by few issues and can be resolved
easily.

Question 7

TRUE OR FALSE:

Creation of reserve areas or protected areas can be one solution to the
current worsening case of marine biodiversity?

Question 8

Name the main services provided by coral reefs and explain them.

Question 9

What is meant by coral bleaching and what is the main cause of it?

Question 10

Marine biodiversity is under significant threat.

Name and briefly explain 4 main ways that this decline can be reduced or mitigated.

Question 11

Name and explain the main water zones and their significance.

Question 12

What role estuaries play with respect to marine life and biodiversity?

Question 13

Explain the importance of planktons for maintaining marine biodiversity
and marine bio resources. Name the two main types of planktons and
the role they play.