2020 Junior WAEC (BECE) Basic Science Past Questions & Answers - page 1

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1

 Short-sightedness can be corrected by wearing ...... lenses.

A

convex

B

plane

C

rough

D

 concave



Correct Option: B



2

The chemical formula for ammonia is ...... 

A

NH 

 

B

 NH2 

C

NH3 

 

D

NH4



Correct Option: C



3

ln a normal human eye, images are formed on the ...... 

 

A

retina 

 

B

pupil 

C

lens 

 

D

cornea



Correct Option: A



4

A specialized person in the treatment of human diseases is a...... 

 

A

 pathologist

 

B

physiotherapist 

C

physiologist 

 

D

psychiatrist 



Correct Option: A



5

 Animal are different from plants because they 

 

A

lack special excretory organs 

 

B

respond spontaneously to stimuli 

C

can manufacture their foods

 

D

grow throughout their life span



Correct Option: B



6

Which of the following animals has a spine?

A

Millipede 

 

B

 Crab 

C

Duckling 

 

D

Spider



Correct Option: C



7

The first product of fractional distillation of crude oil is 

 

A

petroleum gas 

 

B

lubricating oil 

C

 kerosene 

 

D

diesel oil



Correct Option: A



8

A man of mass 60kg runs with a constant velocity. He has kinetic energy of 750J. Calculate his velocity.

A

0.005m/s 

 

B

0.05m/s 

C

0.5m/s 

 

D

 5.0m/s



Correct Option: D



9

Aluminium is preferred to iron as cooking utensils because it...... 

 

A

conducts heat 

 

B

 does not dust 

C

is relatively soft 

 

D

 has high melting point



Correct Option: B



10

The nerve which takes messages from ear to the brain is 

 

A

auditory

 

B

nerve endings 

C

optic 

 

D

olfactory



Correct Option: A



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