1101. Example of renewable resource is:
A. Clay
B. Sand
C. Water
ADVERTISEMENTS:
D. Fossil fuels
1102. Soil covered by peaty fibrous layer is:
A. Glei
B. Podsol
ADVERTISEMENTS:
C. Laterite
D. Chernozem
1103. Which of the following is most important natural resource of energy?
A. Electricity
ADVERTISEMENTS:
B. Biogas
C. Fossil fuels
D. Atomic fission
1104. Reservoirs, lakes, ponds, rivers and canals contain percentage of fresh water:
ADVERTISEMENTS:
A. 77.2%
B. 22.4%
C. 0.36%
D. 30.3%
ADVERTISEMENTS:
1105. Which one of the following groups constitutes the fossil fuels?
A. Natural gas, oil and wood pieces
B. Oil, wood pieces and dry dung
C. Coal, wood pieces and oil
ADVERTISEMENTS:
D. Coal, oil and natural gas
1106. Red soils of India are:
A. Late rite soils
B. Deficient in lime, Mg, P and K
C. Rich in iron and organic matter
D. All of the above
1107. When biosphere turns into human dominated environment, it is called:
A. Noosphere
B. Troposphere
C. Mesosphere
D. Thermosphere
1108. Percentage of land under forests in India is:
A. 23%
B. 10%
C. 4%
D. 38%
1109. Soil conservation is the process where:
A. soil is aerated
B. soil erosion is allowed
C. sterile soil is converted into fertile soil
D. soil is protected against loss
1110. Water logging occurs in:
A. sandy soil
B. gravel soil
C. loamy soil
D. clayey soil
1111. What is ground water reserve of India?
A. 17 million km3
B. 27 million km3
C. 37 million km3
D. 47 million km3
1112. Recently a very rich source of Phosphorus (Phosphate rocks) has been discovered in:
A. Gwalior (M.P.)
B. Ranchi (Jharkhand)
C. Jawar Kota (Raj.)
D. Murad Nagar (U.P.)
1113. Saprobial index relates to:
A. level of water in ecosystem
B. extent of litter decomposition
C. status of terrestrial system
D. status of water body
1114. The aggregates of fine soil particles improve the characteristics of soil by:
A. increasing permeability of soil to water and air
B. increasing permeability of soil to the roots and root hair
C increasing the water and nutrient holding capacity of the soil
D. All of the above
1115. Loam soils are considered to be highly productive because of their proper proportion of:
A. clay and humus
B. sand and zinc
C. sand, clay, silt and humus
D. mineral and water
1116. To rectify acid soil one of the following is used:
A. Urea
B. Phosphate
C. Nitrate
D. Lime
1117. Soil conservation is the process whereby:
A. sterile soil is converted into fertile soil
B. soil is protected against loss
C. soil erosion is allowed
D. soil is aerated
1118. Soil erosion means:
A. breaking up of rock by water streams
B. deposition of new soil layers
C. removal of top soil layers by wind or water
D. decomposition of organic matter and development of the soil
1119. A rough idea of the deficiency of an essential element in the soil without performing soil tests can be obtained by:
A. analyzing the ash of a plant growing in the soil
B. noticing the typical morphology symptoms of deficiency shown by plants growing in it
C. observing the physical texture of soil
D. determining the dry weight of the plant
1120. The plants commonly sown for crop rotation are:
A. Cajanus and Dalbergia
B. Cajanus and Aeschyomene
C. Dalbergia and Trigonella
D. Trigonella and Trifolium
1121. If the same crop is repeatedly grown in a field:
A. Nitrogen starvation may result
B. Specific mineral deficiency may arise
C. Soil will become prone to diseases
D. Water level in soil will recede
1122. Over all mineral level of the soil recedes due to:
A. Leaching only
B. Utilization by plants
C. Both of these
D. Chemical reactions
1123. The amount of soil lost to sea each year due to rain fall is:
A. 3,000 million tonnes
B. 3, 00,000 million tonnes
C. 3, 00, 00000 million tonnes
D. 3, 00,000 billion tonnes
1124. Soil erosion in plains consequent to rain fall is initiated by:
A. Rill erosion
B. Sheet erosion
C. Gully erosion
D. All of these
1125. The soil erosion on a slopes proceeds in the following manner:
A. Gully –> Rill Ravine
B. Rill –> Ravine –> Gully
C. Rill –> Gully –> Ravine
D. Ravine –> Rill –> Gully
1126. Which of the following plants are used as wind breaks?
A. Zizyphus and Calotropis
B. Dalbergia and Delonix
C. Delonix and Albizia
D. Morinda and Anona
1127. Stone dams are made to control the:
A. Rill and gullies
B. Sheet erosion
C. Gullies and ravines
D. All of these
1128. The chief cause of accelerated erosion is:
A. Excessive rains
B. Wind storms
C. Overfilling and overgrazing
D. All of these
1129. Percentage amount of fresh water is:
A. 10%
B. 25%
C. 3%’
D. 17%
1130. Ionosphere is a component of:
A. Thermosphere
B. Mesosphere
C. Stratosphere
D. Troposphere
1131. Where lays the highest concentration of ferro-manganese nodules?
A. North Pacific ocean beds
B. South Atlantic ocean beds
C. North Indian Ocean beds
D. North Atlantic ocean beds
1132. Stratosphere is characterized by:
A. Fall in temperature with height
B. Lack of water vapours and dust particles
C. Rise in temperature with height
D. Both B and C
1133. Fertility of the soil is reduced by:
A. Decaying organic matter
B. Crop rotation
C. Intensive agriculture
D. Addition of nitrogen fixing bacteria
1134. Forests are:
A. Exhaustible resource
B. Non-renewable resource
C. Inexhaustible resource
D. Non-degradable resource
1135. The largest amount of fresh-water on our planet is available in:
A. Lakes and streams
B. Polar ice caps and glaciers
C. Rivers
D. Underground
1136. No sphere is:
A. Component of ecosystem
B. Water filled areas of earth
C. Human dominated biosphere
D. Part of atmosphere above mesosphere
1137. Main source of water to soil is:
A. River
B. Rain
C. Canals
D. Underground
1138. Most of world’s Gold and Platinum occur in:
A. South Africa
B. India
C. Russia
D. U. S. A.
1139. The gasoline plant is:
A. Salvadora
B. Sterculia
C. Thevitia
D. Euphorbia
1140. Pearls of valuable jewelry are of from:
A. Pinctada
B. Nautilus
C. Octopus
D. Water mussel
1141. Which resource is believed to exhaust first?
A. Gold
B. Tin
C. Coal
D. Natural gas
1142. Macrospores of soil (diameter more than 20 mm) take part in:
A. Holding air
B. Holding air and percolation of water
C. Percolation of water
D. Holding of capillary water
1143. An important agrostological technique to soil erosion in the initial stages is:
A. Ley farming
B. Land retirement
C. Basin listing
D. Contour farming
1144. The soil binding is done in the best way by:
A. Algae
B. Mycorrhizae
C. Grasses
D. All of these
1145. Most interacting populations are:
A. mutuality
B. symbiotic
C. parasitic
D. co-evolved
1146. Desert can be converted to green lands by:
A. oxylophytes
B. psammophytes
C. halophytes
D. tropical trees
1147. The animals, which are capable of 7digging the earth, are:
A. arboreal
B. fossorial
C. cursorial
D. pelagic
|
1101 |
1102 |
1103 |
1104 |
1105 |
1106 |
1107 |
1108 |
1109 |
1110 |
|
C |
B |
C |
C |
D |
D |
A |
A |
D |
D |
|
1111 |
1112 |
1113 |
1114 |
1115 |
1116 |
1117 |
1118 |
1119 |
1120 |
|
B |
C |
D |
D |
C |
D |
B |
C |
B |
D |
|
1121 |
1122 |
1123 |
1124 |
1125 |
1126 |
1127 |
1128 |
1129 |
1130 |
|
B |
C |
B |
B |
C |
A |
C |
C |
C |
A |
|
1131 |
1132 |
1133 |
1134 |
1135 |
1136 |
1137 |
1138 |
1139 |
1140 |
|
A |
D |
C |
A |
B |
C |
B |
A |
D |
A |
|
1141 |
1142 |
1143 |
1144 |
1145 |
1146 |
1147 |
|||
|
B |
B |
A |
C |
D |
B |
B |