JAMB Geography Past Questions & Answers - Page 36

176.

On maps, lines drawn to join all places in the ocean having equal degree of salinity are called?

A.

isohalines

B.

isobars

C.

isosalines

D.

isossal

Correct answer is A

Isohalines are lines drawn on maps to join all places in the ocean having equal degree of saltiness or concentration of salt or salinity

177.

Which of the following processes leads to the loss of carbon from the air?

A.

combustion

B.

respiration

C.

putrifaction

D.

photosynthesis

Correct answer is D

carbon dioxide is removed from the air during photosynthesis as green plants use it to manufacture their food

178.

_______ is defined as the total surrounding or medium of any organism in a given area?

A.

Biotic component

B.

Abiotic component

C.

Environment

D.

Ecosystem

Correct answer is C

Environment is defined as the total surrounding or medium of any organism in a given area. This includes the physical surroundings, climatic factors and other living organisms in that surroundings

179.

In a combined maximum and minimum thermometer, the difference between the hottest and coldest daily temperature for that day gives the?

A.

Diurnal range of temperature

B.

Mean daily temperature

C.

Minimum daily temperature

D.

Maximum daily temperature

Correct answer is A

Diurnal range of temperature = Max.temperature - Mini.temperature for that day
Maximum daily temperature ≡ Hottest daily temperature
Minimum daily temperature ≡ Coldest daily temperature

180.

_______ is the condition of the lower atmosphere of a place over a short period?

A.

climate

B.

weather

C.

cloud

D.

Humidity

Correct answer is B

Weather is the condition of the lower atmosphere of a place over a short period. The weather of a place is always very brief and changes regularly e.g the weather of today could be sunny, rainy or cloudy etc.