McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Science in Environmental Science (BSC es) .
| 101. |
Yellowing of Taj Mahal is an effect of |
| A. | Acid rain |
| B. | Global warming |
| C. | Ozone depletion |
| D. | All of the above |
| Answer» A. Acid rain | |
| 102. |
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» D. All of the above | |
| 103. |
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» B. Bio magnification | |
| 104. |
Pollutants that are easily manageable and decomposable in nature are called |
| A. | Biodegradable pollutants |
| B. | Non-biodegradable pollutants |
| C. | Renewable pollutants |
| D. | None of these |
| Answer» A. Biodegradable pollutants | |
| 105. |
The supersonic jets cause air pollution by the thinning of |
| A. | Carbon dioxide layer |
| B. | Sulphur dioxide layer |
| C. | Ozone layer |
| D. | Oxygen layer |
| Answer» C. Ozone layer | |
| 106. |
Which of the following is the best indicator of SO2 pollution |
| A. | Bryophytes |
| B. | Pteridophytes |
| C. | Lichens |
| D. | Algae |
| Answer» C. Lichens | |
| 107. |
BOD stands for |
| A. | Biotic oxidation demand |
| B. | Biological oxygen demand |
| C. | Biological oxidation demand |
| D. | Biochemical oxygen demand |
| Answer» D. Biochemical oxygen demand | |
| 108. |
A river with high BOD value means |
| A. | Highly polluted |
| B. | Highly clean |
| C. | Highly productive |
| D. | None of the above |
| Answer» A. Highly polluted | |
| 109. |
Which gas is responsible for ozone layer depletion around earth? |
| A. | Carbon dioxide |
| B. | Chlorofluorocarbons |
| C. | Oxygen |
| D. | Nitrogen oxide |
| Answer» B. Chlorofluorocarbons | |
| 110. |
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» A. It is an agreement among countries to take steps for reducing global warming. | |
| 111. |
Possible health effects of noise pollution includes |
| A. | Hearing loss |
| B. | Hypertension |
| C. | Cardiovascular effects |
| D. | All of the above |
| Answer» D. All of the above | |
| 112. |
Noise is measured by sound meter and the unit is |
| A. | Hertz |
| B. | Joule |
| C. | Decibel |
| D. | Seconds |
| Answer» C. Decibel | |
| 113. |
Which of the following are major causes of land degradation? |
| A. | Soil erosion |
| B. | Water logging |
| C. | Deforestation |
| D. | Desertification |
| Answer» C. Deforestation | |
| 114. |
The main components of photochemical smog is |
| A. | Water vapors |
| B. | Nitrogen oxides |
| C. | Sulphur oxides |
| D. | All of the above |
| Answer» D. All of the above | |
| 115. |
Which gas is responsible for the global warming? |
| A. | Nitrogen |
| B. | Carbon dioxide |
| C. | Noble gases |
| D. | Hydrogen |
| Answer» B. Carbon dioxide | |
| 116. |
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» A. Maldives | |
| 117. |
Which of the following effect is responsible for Global Warming? |
| A. | Greenhouse effect |
| B. | Radioactive effect |
| C. | Solar effect |
| D. | Nuclear effect |
| Answer» A. Greenhouse effect | |
| 118. |
Which of the following greenhouse gas is entirely anthropogenic in origin? |
| A. | CFCs |
| B. | Methane |
| C. | Carbon dioxide |
| D. | Water vapor |
| Answer» C. Carbon dioxide | |
| 119. |
Which of the following statements regarding the greenhouse effect has the lowest degree of certainty? |
| A. | Addition of greenhouse gases to the atmosphere results in increased heat energy in the atmosphere |
| B. | Global warming will result in an increase in the number of tropical storms |
| C. | Global warming will result in rising sea levels |
| D. | The concentrations of greenhouse gases in the atmosphere are increasing due to human activities. |
| Answer» B. Global warming will result in an increase in the number of tropical storms | |
| 120. |
Which of the following is not a greenhouse gas? |
| A. | Methane |
| B. | Ozone |
| C. | Water vapor |
| D. | Carbon dioxide |
| Answer» C. Water vapor | |
| 121. |
The two major impacts expected as a result of rising global temperatures are |
| A. | Higher water levels in lakes and streams but more consistent flooding patterns |
| B. | Regional climatic changes and a rise in sea level |
| C. | Longer summers and drier winters |
| D. | Low water levels in lakes and streams and larger floodplains. |
| Answer» B. Regional climatic changes and a rise in sea level | |
| 122. |
How are humans making greenhouse gases of our own? |
| A. | Burning fossil fuels |
| B. | Burning forests |
| C. | With large scale agriculture |
| D. | All of these |
| Answer» A. Burning fossil fuels | |
| 123. |
The solar radiation that bounces off the earth back towards the atmosphere is mostly |
| A. | Gamma radiation |
| B. | X-ray radiation |
| C. | Ultraviolet radiation |
| D. | Infrared radiation |
| Answer» D. Infrared radiation | |
| 124. |
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» D. All of the above | |
| 125. |
Excess atmospheric carbon dioxide increases greenhouse effect as carbon dioxide |
| A. | Precipitates dust in the atmosphere |
| B. | Is opaque to infrared rays |
| C. | Reduces atmospheric pressure |
| D. | Is heavier than other gases |
| Answer» B. Is opaque to infrared rays | |
| 126. |
Which of the following is not a potential adverse effect of global warming? |
| A. | More extreme weather patterns |
| B. | Retreat of glaciers |
| C. | Sea level rise |
| D. | An increase of UV-B radiation |
| Answer» D. An increase of UV-B radiation | |
| 127. |
Which of the following processes adds to the removal of carbon dioxide from the atmosphere? |
| A. | Burning fossil fuels |
| B. | Photosynthesis |
| C. | Respiration |
| D. | Deforestation |
| Answer» B. Photosynthesis | |
| 128. |
Which is the only country who has not ratified the Kyoto Protocol yet? |
| A. | United States |
| B. | Australia |
| C. | Japan |
| D. | India |
| Answer» A. United States | |
| 129. |
Ozone day is observed on |
| A. | 3rd January |
| B. | 16th September |
| C. | 10th November |
| D. | 26th March |
| Answer» B. 16th September | |
| 130. |
Ozone layer is present in |
| A. | Troposphere |
| B. | Mesosphere |
| C. | Thermosphere |
| D. | Stratosphere |
| Answer» D. Stratosphere | |
| 131. |
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» C. Carbon tetrachloride | |
| 132. |
Peeling of Ozone umbrella, which protects us from UV rays, is caused by |
| A. | Carbon monoxide |
| B. | CFCs |
| C. | Coal burning |
| D. | Methane |
| Answer» B. CFCs | |
| 133. |
Formation of hole in Ozone is maximum over |
| A. | India |
| B. | Europe |
| C. | Antarctica |
| D. | Africa |
| Answer» C. Antarctica | |
| 134. |
Increasing skin cancer and high mutation rate are the result of |
| A. | Global warming |
| B. | Ozone depletion |
| C. | Acid rain |
| D. | Pollution |
| Answer» B. Ozone depletion | |
| 135. |
Which of the following statements about ozone is true? |
| A. | Ozone is a major constituent of photochemical smog |
| B. | Ozone is highly reactive |
| C. | It protects us from harmful UV radiations of sun |
| D. | All of the above |
| Answer» C. It protects us from harmful UV radiations of sun | |
| 136. |
Thickness of ozone layer is measured in |
| A. | Decibels |
| B. | Dobson unit |
| C. | Meter |
| D. | Armstrong unit |
| Answer» B. Dobson unit | |
| 137. |
Chlorofluorocarbon releases a chemical harmful to ozone is |
| A. | Chlorine |
| B. | Fluorine |
| C. | Carbons |
| D. | Nitrogen peroxide |
| Answer» A. Chlorine | |
| 138. |
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» B. Chlorine atoms | |
| 139. |
A population is a group of |
| A. | Individual in a family |
| B. | Individuals in a species |
| C. | Communities in an ecosystem |
| D. | Species in a community |
| Answer» B. Individuals in a species | |
| 140. |
The main cause of world population growth in 18th and 19th centuries was |
| A. | Decrease in birth rates |
| B. | Decrease in death rates |
| C. | Industrial revolution |
| D. | None of these |
| Answer» C. Industrial revolution | |
| 141. |
What is most important factor for the success of animal population? |
| A. | Natality |
| B. | Adaptability |
| C. | Interspecies activity |
| D. | Unlimited food |
| Answer» B. Adaptability | |
| 142. |
Human population growth is |
| A. | Horizontal line |
| B. | L-shaped curve |
| C. | J-shaped curve |
| D. | Parabola curve |
| Answer» C. J-shaped curve | |
| 143. |
The main factors contributing to the decline in death rate in 20th century were |
| A. | Improved agricultural practices and increased birth rates |
| B. | Improved health care, sanitation and nutrition |
| C. | Endemic poverty and low levels of education |
| D. | European colonization and improved agriculture practices |
| Answer» B. Improved health care, sanitation and nutrition | |
| 144. |
The world population in 2000 was approximately |
| A. | 5.1 billion |
| B. | 2.1 billion |
| C. | 6 billion |
| D. | 8 billon |
| Answer» C. 6 billion | |
| 145. |
The average life expectancy around the world is currently |
| A. | Stable |
| B. | Increasing |
| C. | Decreasing |
| D. | Not changing |
| Answer» B. Increasing | |
| 146. |
Exponential growth in population occurs when there is |
| A. | A great environment resistance |
| B. | No environment resistance |
| C. | A fixed carrying capacity |
| D. | No biotic potential |
| Answer» B. No environment resistance | |
| 147. |
The disease which wiped out 33% of population of Europe in the 12th and 13th centuries was |
| A. | Cholera |
| B. | Meningitis |
| C. | Plague |
| D. | Diphtheria |
| Answer» C. Plague | |
| 148. |
A human population is small, there is greater chance of |
| A. | Mutation |
| B. | Gene flow |
| C. | Genetic drift |
| D. | Natural selection |
| Answer» C. Genetic drift | |
| 149. |
Which of the following is a problem not associated with population growth? |
| A. | Increased resource consumption |
| B. | Environmental pollution |
| C. | Food and energy shortages |
| D. | None of these |
| Answer» D. None of these | |
| 150. |
Unrestricted reproductive capacity, in a population, is called |
| A. | Birth rate |
| B. | Carrying capacity |
| C. | Fertility rate |
| D. | Biotic potential |
| Answer» D. Biotic potential | |
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