General science GK question answer || 300+MCQ || free PDF
26. What is the term for the phenomenon where nutrient runoff from agriculture leads to excessive growth of algae in water bodies?
a) Eutrophication
b) Acidification
c) Pollution
d) Sedimentation
Answer: a) Eutrophication
27. What is the term for the introduction of non-native species into an ecosystem, which can disrupt local biodiversity?
a) Invasive species
b) Endangered species
c) Keystone species
d) Indigenous species
Answer: a) Invasive species
28. What is the term for the measure of how much carbon dioxide emissions are produced by human activities?
a) Carbon footprint
b) Carbon sequestration
c) Carbon neutrality
d) Carbon offset
Answer: a) Carbon footprint
29. What type of energy is derived from the heat of the Earth's interior?
a) Solar energy
b) Geothermal energy
c) Wind energy
d) Hydroelectric energy
Answer: b) Geothermal energy
General science GK
30. What is the term for the conversion of waste organic material into nutrient-rich compost?
a) Recycling
b) Incineration
c) Composting
d) Landfilling
Answer: c) Composting
31. What is the term for the process by which rocks and minerals are broken down by chemical reactions?
a) Mechanical weathering
b) Chemical weathering
c) Biological weathering
d) Physical weathering
Answer: b) Chemical weathering
32. What is the term for the process of restoring ecosystems that have been degraded or destroyed?
a) Preservation
b) Conservation
c) Restoration
d) Reforestation
Answer: c) Restoration
33. What is the name of the protective layer in the stratosphere that absorbs and scatters ultraviolet radiation?
a) Troposphere
b) Mesosphere
c) Thermosphere
d) Ozone layer
Answer: d) Ozone layer
34. What is the term for the practice of using renewable resources at a rate that does not deplete them?
a) Sustainable development
b) Resource exploitation
c) Overconsumption
d) Conservation
Answer: a) Sustainable development
35. What is the term for the decrease in Earth's biodiversity due to human activities?
a) Extinction
b) Conservation
c) Endangerment
d) Biodiversity loss
Answer: d) Biodiversity loss
36. What is the term for the practice of reducing, reusing, and recycling materials to minimize waste?
a) Waste management
b) Environmental impact
c) Resource conservation
d) Sustainable living
Answer: d) Sustainable living
37. What is the name of the international treaty aimed at reducing emissions of ozone-depleting substances?
a) Paris Agreement
b) Kyoto Protocol
c) Montreal Protocol
d) Rio Declaration
Answer: c) Montreal Protocol
38. What is the term for the process by which plants absorb carbon dioxide and release oxygen?
a) Respiration
b) Photosynthesis
c) Transpiration
d) Decomposition
Answer: b) Photosynthesis
39. What is the name of the large-scale environmental movement that seeks to protect and preserve natural environments and wildlife?
a) Environmentalism
b) Conservationism
c) Preservationism
d) Green movement
Answer: a) Environmentalism
40. What is the term for the loss of topsoil due to wind or water erosion?
a) Soil erosion
b) Soil degradation
c) Soil compaction
d) Soil salinization
Answer: a) Soil erosion
General science GK
41. What is the term for the process of collecting rainwater to use for irrigation or other purposes?
a) Rain harvesting
b) Water conservation
c) Desalination
d) Aquifer recharge
Answer: a) Rain harvesting
42. What is the term for the study of interactions between living organisms and their environment?
a) Ecology
b) Biology
c) Geology
d) Environmental science
Answer: a) Ecology
43. What is the primary cause of sea level rise?
a) Ocean acidification
b) Melting glaciers and ice caps
c) Overfishing
d) Coastal erosion
Answer: b) Melting glaciers and ice caps
44. What is the term for the process of extracting and using fossil fuels in a manner that depletes their reserves?
a) Sustainable use
b) Resource depletion
c) Fossil fuel consumption
d) Non-renewable resource exploitation
Answer: d) Non-renewable resource exploitation
45. What is the term for the practice of using natural resources in a way that maintains their availability for future generations?
a) Sustainable resource management
b) Overexploitation
c) Resource depletion
d) Environmental degradation
Answer: a) Sustainable resource management
46. What is the term for the increase in atmospheric carbon dioxide levels due to human activities?
a) Carbon cycle
b) Carbon footprint
c) Carbon sequestration
d) Carbon emission
Answer: d) Carbon emission
47. What is the term for the process by which organisms adapt to changes in their environment over time?
a) Evolution
b) Adaptation
c) Natural selection
d) Speciation
Answer: a) Evolution
48. What is the term for the introduction of harmful substances into the environment that can cause adverse effects?
a) Pollution
b) Contamination
c) Environmental impact
d) Hazardous waste
Answer: a) Pollution
49. What is the term for the practice of growing crops without the use of synthetic pesticides or fertilizers?
a) Conventional farming
b) Organic farming
c) Industrial agriculture
d) Hydroponics
Answer: b) Organic farming
50. What is the term for the study of how human activities impact the environment and how to mitigate these impacts?
a) Environmental science
b) Environmental engineering
c) Environmental policy
d) Environmental management
Answer: a) Environmental science
General science GK
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