ECOLOGY - Jamb Biology Past Questions and Answers

Question 246:

• JAMB 2009

The most important ecological factor in a terrestrial environment is

A. Rainfall
B. Humidity
C. Wind
D. Soil

Question 247:

• JAMB 2009

In fresh water marshes and swamps, the most important abiotic factors that organisms have to adapt to is

A. Nature of substratum
B. High salinity
C. High temperature
D. Low pH

Question 248:

• JAMB 2009

Which of the following biomass could be characterized by very low rainfall,cold nights, hot days, and fast blooming plants?

A. Northern guinea savanna
B. Sounthern guinea savanna
C. Tropical desert
D. Montane forest

Question 249:

• JAMB 2009

Mass of crucible = 10g
Mass of crucible and soil before heating = 29g
Mass of a crucible and soil after heating = 18g
From the information above, determine the percentage of water in the given soil sample?

A. 20%
B. 25%
C. 40%
D. 50%

Question 250:

• JAMB 2009

The major cause of global warning is the

A. Burning of fossil fuel
B. Construction of dams
C. Use of electricity
D. Exploration of space