Jamb Biology Past Questions For Year 2018
Question 21
Which of the following statements is true about sandy soil?
- A. has limited air space
- B. is light and easy to dig
- C. drains slowly
- D. is heavy and poorly aerated
Question 22
Which of the following instruments is used to estimate the number of plants in a habitat?
- A. pooter
- B. pitfall trap
- C. quadrant
- D. sweep net
Question 23
What is the critical limiting factor for plants below the photic zone in an aquatic ecosystem?
- A. availability of nutrients
- B. availability of water
- C. intensity of light
- D. carbon dioxide concentration
Question 24
Which of the following cycles involves the process of precipitation and transpiration?
- A. water cycles
- B. carbon cycle
- C. nitrogen cycle
- D. oxygen cycle
Question 25
Which of the following processes removes carbon from the atmosphere?
- A. putrefaction
- B. photosynthesis
- C. volcanic eruption
- D. burning of fuels
