Which of the following statements is true about sandy soil?
has limited air space
is light and easy to dig
drains slowly
is heavy and poorly aerated
Correct answer is B
No explanation has been provided for this answer.
Which of the following instruments is used to estimate the number of plants in a habitat?
pooter
pitfall trap
quadrant
sweep net
Correct answer is C
No explanation has been provided for this answer.
What is the critical limiting factor for plants below the photic zone in an aquatic ecosystem?
availability of nutrients
availability of water
intensity of light
carbon dioxide concentration
Correct answer is C
No explanation has been provided for this answer.
Which of the following cycles involves the process of precipitation and transpiration?
water cycle
carbon cycle
nitrogen cycle
oxygen cycle
Correct answer is A
No explanation has been provided for this answer.
Which of the following processes removes carbon from the atmosphere?
putrefaction
photosynthesis
volcanic eruption
burning of fuels
Correct answer is B
No explanation has been provided for this answer.