MCQOPTIONS
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MCQOPTIONS
This section includes 1049 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Which of the following does not causes air pollution when used for heating purposes |
| A. | Coal |
| B. | Petrol |
| C. | Kerosene |
| D. | Solar energy |
| Answer» E. | |
| 102. |
Hotspots are regions of high |
| A. | Rareism |
| B. | Endemism |
| C. | Diversity |
| D. | Critically endangered population |
| Answer» D. Critically endangered population | |
| 103. |
Which of the following greenhouse gas is entirely anthropogenic in origin? |
| A. | CFCs |
| B. | Methane |
| C. | Carbon dioxide |
| D. | Water vapor |
| Answer» D. Water vapor | |
| 104. |
Manmade resources are alternative to natural resources for a variety of reasons. Which of these would not be one of those? |
| A. | They increase variety and choice |
| B. | They are cheaper to produce than natural resources |
| C. | They are made from renewable resources |
| D. | They are better suited for the purpose for which they will be used |
| Answer» D. They are better suited for the purpose for which they will be used | |
| 105. |
Which one of the following gases can deplete the ozone layer in the upper atmosphere? |
| A. | Methane |
| B. | Ammonia |
| C. | Carbon tetrachloride |
| D. | Sulphur dioxide |
| Answer» D. Sulphur dioxide | |
| 106. |
Increase in concentration of toxic level in each trophic level is referred to as |
| A. | Eutrophication |
| B. | Bio magnification |
| C. | Bioaccumulation |
| D. | Bio concentration |
| Answer» C. Bioaccumulation | |
| 107. |
Which among the following is a climatic factor? |
| A. | pressure |
| B. | humidity |
| C. | temperature |
| D. | all of the above |
| Answer» E. | |
| 108. |
Aerosols consisting of solid particles produced by combustion |
| A. | Fog |
| B. | Smog |
| C. | Smoke |
| D. | None of these |
| Answer» C. Smoke | |
| 109. |
Study of trends in human population growth and prediction of future growth is called |
| A. | Demography |
| B. | Psychology |
| C. | Biography |
| D. | Kalography |
| Answer» B. Psychology | |
| 110. |
In the breakdown of the ozone layer, the ozone (O3) directly reacts with |
| A. | Ultraviolet light |
| B. | Chlorine atoms |
| C. | Oxygen atoms |
| D. | CFC molecules |
| Answer» C. Oxygen atoms | |
| 111. |
In an ecotone, the species which become abundant are called: |
| A. | Edge species |
| B. | Keystone species |
| C. | Endemic species |
| D. | Foster species |
| Answer» B. Keystone species | |
| 112. |
Which one of the following has the maximum genetic diversity in India? |
| A. | Tea |
| B. | Teak |
| C. | Mango |
| D. | Wheat |
| Answer» D. Wheat | |
| 113. |
What is Kyoto Protocol? |
| A. | It is an agreement among countries to take steps for reducing global warming. |
| B. | It is an agreement among countries to take steps for reducing acid rain. |
| C. | It is an agreement among countries to take steps for planting trees to control pollution. |
| D. | It is an agreement among countries to start using nuclear energy. |
| Answer» B. It is an agreement among countries to take steps for reducing acid rain. | |
| 114. |
Atmosphere consists of 79 percent Nitrogen and 21 percent Oxygen by |
| A. | Volume |
| B. | Weight |
| C. | Density |
| D. | All of these |
| Answer» C. Density | |
| 115. |
One of the critical mechanism by which the environment controls population of species is |
| A. | Spread of disease |
| B. | Removal of excreta |
| C. | Supply of food |
| D. | Control on death rate |
| Answer» E. | |
| 116. |
Which of the following regions has the maximum diversity? |
| A. | Mangroves |
| B. | Temperate forest |
| C. | Taiga |
| D. | Coral reefs |
| Answer» E. | |
| 117. |
Chlorofluorocarbon releases a chemical harmful to ozone is |
| A. | Chlorine |
| B. | Fluorine |
| C. | Carbons |
| D. | Nitrogen peroxide |
| Answer» B. Fluorine | |
| 118. |
A herbivore is also known as a |
| A. | Producer |
| B. | First order consumer |
| C. | Second order consumer. |
| D. | Third order consumer |
| Answer» C. Second order consumer. | |
| 119. |
Human population growth is |
| A. | Horizontal line |
| B. | L-shaped curve |
| C. | J-shaped curve |
| D. | Parabola curve |
| Answer» D. Parabola curve | |
| 120. |
The purest form of coal is |
| A. | Anthracite |
| B. | Lignite |
| C. | Peat |
| D. | Bitumen |
| Answer» D. Bitumen | |
| 121. |
Deserts, grasslands, forests and tundra regions are the examples of |
| A. | Biomes |
| B. | Biogeographically regions |
| C. | Ecosystems |
| D. | Biospheres |
| Answer» D. Biospheres | |
| 122. |
The unfavorable alteration of environment by human activities is termed as |
| A. | Ecological disturbance |
| B. | Ecological degradation |
| C. | Pollution |
| D. | Catastrophe |
| Answer» C. Pollution | |
| 123. |
The pyramid of energy is always upright for any ecosystem, this situation indicates that |
| A. | Herbivores have better energy conversion efficiency than carnivores |
| B. | Producers have the lowest energy conversion efficiency |
| C. | Carnivores have a better energy conversion efficacy than herbivores |
| D. | Energy conversion efficiency is same at all trophic levels |
| Answer» E. | |
| 124. |
A group of living organisms of the same kind living in the same place and at the same time refers to a |
| A. | Community |
| B. | Species |
| C. | Population |
| D. | Consumers |
| Answer» D. Consumers | |
| 125. |
Population explosion has occurred in the last |
| A. | 500 years |
| B. | 300 years |
| C. | 400 years |
| D. | 150 years |
| Answer» E. | |
| 126. |
Environmental impact assessment |
| A. | is the study of feasibility of a project |
| B. | is a study of bio-physical characteristics of the environment that may result from a human action |
| C. | Both a and b |
| D. | None of the above |
| Answer» C. Both a and b | |
| 127. |
If the rate of addition of new member’s increases with respect to the individual lost of the same population, then the graph obtained has |
| A. | Decline growth |
| B. | Zero growth |
| C. | Exponential growth |
| D. | None of these |
| Answer» D. None of these | |
| 128. |
Biogas contains mainly |
| A. | Methane |
| B. | Propane |
| C. | Butane |
| D. | Carbon dioxide |
| Answer» B. Propane | |
| 129. |
The true end of any food chain is the |
| A. | Decomposer |
| B. | Predator |
| C. | Consumer |
| D. | Human |
| Answer» B. Predator | |
| 130. |
In a pyramid of numbers in grassland ecosystems, the largest population is that of |
| A. | Herbivores |
| B. | Primary consumers |
| C. | Secondary consumer |
| D. | Producers |
| Answer» B. Primary consumers | |
| 131. |
The process of restoring forests that once existed but was removed at some time in the past is known as |
| A. | Afforestation |
| B. | Reforestation |
| C. | Deforestation |
| D. | None of these |
| Answer» C. Deforestation | |
| 132. |
Which one of the following is not a gaseous biogeochemical cycle |
| A. | Nitrogen cycle |
| B. | Carbon cycle |
| C. | Sulphur cycle |
| D. | Phosphorus cycle |
| Answer» E. | |
| 133. |
Which of the following effect is responsible for Global Warming? |
| A. | Greenhouse effect |
| B. | Radioactive effect |
| C. | Solar effect |
| D. | Nuclear effect |
| Answer» B. Radioactive effect | |
| 134. |
A poisonous gas given out of vehicles exhaust is |
| A. | Carbon monoxide |
| B. | Ethane |
| C. | Methane |
| D. | Carbon dioxide |
| Answer» B. Ethane | |
| 135. |
Which of the following is management option for air pollution? |
| A. | Regulations and standards |
| B. | Transport planning |
| C. | Using CNG as fuel |
| D. | All of these |
| Answer» E. | |
| 136. |
Which one of the following regions in India is a hotspot of biodiversity? |
| A. | Sundarbans |
| B. | Western Ghats |
| C. | Eastern Ghats |
| D. | Gangetic plains |
| Answer» C. Eastern Ghats | |
| 137. |
Pyramid of energy in a pond ecosystem is always |
| A. | Inverted |
| B. | Upright |
| C. | Linear |
| D. | Irregular |
| Answer» C. Linear | |
| 138. |
Identify the aftermaths of acid rain from the following |
| A. | Dissolving and washing away of nutrients from the soil |
| B. | Increasing the acidity of soils, thereby hindering the growth of plants |
| C. | Damaging the building materials/ heritage sites |
| D. | All of the above |
| Answer» E. | |
| 139. |
Which one of the following is used as a refrigerant? |
| A. | Freon |
| B. | Teflon |
| C. | Ethanol |
| D. | Benzol |
| Answer» B. Teflon | |
| 140. |
Loss of forest has led to |
| A. | Erosion of fertile soil |
| B. | Global warming |
| C. | Loss of habitat of plants and animals |
| D. | All of the above |
| Answer» E. | |
| 141. |
Which country has organized its cabinet meeting under the sea to drag attention of the world towards the Global Warming and its threats? |
| A. | Maldives |
| B. | Sri Lanka |
| C. | Fiji |
| D. | Indonesia |
| Answer» B. Sri Lanka | |
| 142. |
Which of the following is not an inexhaustible form of energy? |
| A. | Water |
| B. | Wind |
| C. | Solar |
| D. | Fossil |
| Answer» D. Fossil | |
| 143. |
Things you can do to decrease global warming include |
| A. | Reduce the usage of your air conditioner on high |
| B. | Turn off your light when you are not using them. |
| C. | Use public transports instead of personal vehicles for transportation. |
| D. | All of the above |
| Answer» E. | |
| 144. |
Development activities on the hydrosphere cause |
| A. | Air pollution |
| B. | Soil pollution |
| C. | Water pollution |
| D. | Soil erosion |
| Answer» D. Soil erosion | |
| 145. |
Ozone day is observed on |
| A. | 3rd January |
| B. | 16th September |
| C. | 10th November |
| D. | 26th March |
| Answer» C. 10th November | |
| 146. |
Soil erosion removes surface soil which contains |
| A. | Organic matter |
| B. | Plant nutrients |
| C. | Both a and b |
| D. | none of the above |
| Answer» B. Plant nutrients | |
| 147. |
A liquid fuel that was formed from the ancient remains of sea plants and animals is |
| A. | Natural gas |
| B. | Petroleum |
| C. | Geothermal energy |
| D. | Coal |
| Answer» C. Geothermal energy | |
| 148. |
The concept that “population increases geometrically while food supply increases arithmetically” wasgiven by |
| A. | Stuart Mill |
| B. | Charles Darwin |
| C. | Adam Smith |
| D. | Thomas Malthus |
| Answer» E. | |
| 149. |
Which gas is responsible for the global warming? |
| A. | Nitrogen |
| B. | Carbon dioxide |
| C. | Noble gases |
| D. | Hydrogen |
| Answer» C. Noble gases | |
| 150. |
Stratus clouds are typically puffy and form by convection.~! |
| A. | True |
| B. | False |
| Answer» C. | |