D:-Holding material
Correct Answer:- Option-B

Question47:-Match the terminologies in Column - | with their descriptions in Column
- ll and select the appropriate option.

Column - | Column - ॥
உ 8೧1೧0 1 = Maintaining moisture content in soil by a protective layer
Q_ Stripping 2 Removing broken branches from trees for better growth
र 1061೧0 3 Loosening the ground to remove weeds
S Mulching 4 Cutting tree

5 Harvesting of bark

A:-P-2, Q-5, R-3, S-1

B:-P-1, Q-3, R-5, S-4

C:-P-3, Q-5, R-1, S-4

D:-P-2, Q-4, R-5, S-1

Correct Answer:- Option-A
Question48:-Which of the following statements is/are correct about the main
ecological principles concerning cities?
(i) Cities are ecosystems.
(ii) Cities are dynamic.
(111) Human and natural processes interact in cities.
(iv) Cities are spatially heterogeneous.

A:-Only (i) and (ii)

B:-Only (i), (ii) and (iv)

C:-Only (ii) and (iv)

D:-All the above

Correct Answer:- Option-D

Question49:-Match the Scientific names in Column - | with their common names in
Column - Il and select the appropriate option.

Column - | Column - ॥
? (25512 05118 1 Gulmohar
Q___Delonix regia 2 Golden shower
रि Toona Ciliata 3 Banyan
S Ficus benghalensis 4 Peepal

5 Indian Mahagony
A:-P-2, Q-5, R-3, S-1
B:-P-1, Q-3, R-5, S-4
C:-P-3, Q-5, R-1, S-4
D:-P-2, Q-1, R-5, S-3
Correct Answer:- Option-D

Question50:-A hemispherical mound of 4 meter diameter is proposed to be
constructed in a park. If the proportion of soil and sand for the construction is 3:1,
the estimated volume of soil in cubic meters is