WAEC Past Questions and Answers - Page 3396

16,976.

The diagram below is an illustration of an ecological instrument. Study it an answer the question below.

When the instrument is in use, it is usually? 

A.

placed slightly above soil level

B.

placed on a table

C.

suspended in air

D.

suspended to moving water

Correct answer is A

No explanation has been provided for this answer.

16,977.

The diagram below illustrates an ecological instrument. Study it and answer the question below.

A disadvantage of the abiotic factor measured by the instrument is that it

A.

is an agent of pollination

B.

is necessary for germination

C.

leads to flooding when in excess

D.

is used for irrigation

Correct answer is C

  •  The rain gauge is an instrument used to collect and measure precipitation (falling water).
  • High level of rain can lead to flooding.

16,978.

The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below:

 

Organism                 Number in the habitat
   habitat W habitat Y
Plankton  126 0
Antelope 0 51
Water flea 10 0
Tilapia 23 0
Lion 0 6
Frog 6 0
Grass 0 250

The number of lions and antelopes in habitat Y shows that the lion 

A.

is the prey while the antelope is the predator

B.

is the predator while the antelope is the prey

C.

and the antelope are preys to each other

D.

and the antelopes are predators

Correct answer is B

No explanation has been provided for this answer.

16,979.

The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below:

 

Organism                 Number in the habitat
   habitat W habitat Y
Plankton  126 0
Antelope 0 51
Water flea 10 0
Tilapia 23 0
Lion 0 6
Frog 6 0
Grass 0 250

Which of the following statements about habitat W is correct? The

A.

absence of lions and antelopes shows that the habitat is terrestrial

B.

presence of Tilapia and planktons shows that the habitat is not aquatic

C.

type of organisms present indicate that habitat is aquatic

D.

absence of grasses indicates that the habitat is terrestrial

Correct answer is C

 

16,980.

 

The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below:

 

Organism                 Number in the habitat
   habitat W habitat Y
Plankton  126 0
Antelope 0 51
Water flea 10 0
Tilapia 23 0
Lion 0 6
Frog 6 0
Grass 0 250

What type of habitat is W?

A.

Rainforest

B.

Pond

C.

Desert

D.

Ocean

Correct answer is B

No explanation has been provided for this answer.