Our Environment and Its Management Sample Questions for Class 10
Question 1
An exothermic reaction
A. absorbs heat from the environment.
B. releases heat to the environment.
C. refers to a process where two substances interact to create bubbles.
D. none of the above.
Question 2
The living parts of an environment are the
A. abiotic factors.
B. biotic factors.
C. producers.
D. predators.
Question 3
The physical environment in which a species lives and to which it is adapted is its
A. niche.
B. habitat.
C. community.
D. trophic level.
Question 4
No population can grow indefinitely. The ultimate size of any population is limited by
A. the carrying capacity of its environment.
B. its death rate.
C. its birth rate.
D. its r value.
Question 5
How is it possible for lungfish to survive out of the water for short periods of time?
A. They possess both gills and lungs to breathe in both environments.
B. They can hold their breath for very long periods of time.
C. They are able to absorb oxygen through their skin when they come onto land.
D. They use their gills just as well on land as in the water.