DIAGNOSTIC TEST

CHANGES IN NATURE

Multiple Choice Questions

  1. How many high tides and low tides are there in one day usually?

A. 2 high and 2 low

B. 1 high and 1 low

C. 2 high and 1 low

  1. The term for organisms that are most active during the day is:

A. nocturnal

B. diurnal

C. solar

  1. The seasonal changes on earth affect a whale’s:

A. feeding

B. breathing

C. migration

  1. The movement of the moon has a particular effect on animals in the:

A. deep ocean

B. intertidal zone

C. terrestrial habitat

  1. The decrease of the metabolism of an animal such as a bear during winter is called:

A. hibernation

B. sleeping

C. hypermetabolism

  1. The Mother’s Day flower, chrysanthemum, flowers as a result of the:

A. increasing number of hours of darkness each day

B. decrease in temperature

C. increase in light as the seasons change from summer to autumn

  1. The chemical in environmentally unfriendly detergents that promote water plant growth in our rivers is:

A. sulphur

B. soap

C. phosphate

  1. When fertilisers find their way to the waterways causing an increase in algal growth and reduction in dissolved oxygen, this process is called:

A. eutrophication

B. succession

C. biomagnification

  1. The gradual increase in biotic diversity after a catastrophe such as a volcanic eruption is:

A. eutrophication

B. succession

C. biomagnification

  1. A man-made catastrophe that damages large tracts of the environment is:

A. earthquakes

B. flood

C. open cut mining

True-False Questions

  1. Koalas are nocturnal animals.
  2. All animals reproduce only in the spring season.
  3. Flowering plants are stimulated to flower because of the number of hours of darkness during each 24 hour period.
  4. After land has been laid bare after mining, the first organisms to grow are small plants with a high tolerance to environmental extremes.
  5. Secondary succession involves the development of larger plant and animals in a previously damaged area.

Short Answer Questions

  1. What is another gradual environmental change apart from eutrophication and succession?
  2. Describe 2 factors that affect crabs in the intertidal zone.
  3. How would warm water released from power stations into a river affect fish?
  4. What are 2 chemicals that accelerate algal blooms?
  5. State one effect of global warming on plants.

DIAGNOSTIC TEST

CHANGES IN NATURE

ANSWERS

1.A 2.B 3.C 4.B 5.A 6.A 7.C 8.A 9.B 10.C

11.T 12.F 13.T 14.T 15.T

  1. greenhouse effect
  2. Depth movement and temperature of water, amount of sunlight
  3. The warm water would both make the fish more active as they are ectothermic and also increase water plant growth. In the long term, this plant growth may reduce the dissolved oxygen and fish may suffocate.
  4. Nitrate and phosphate
  5. Increase in carbon dioxide in certain areas where the photosynthetic process of plants cannot tolerate the higher level, changes in weather patterns as a result of globally warmer temperatures.