General science GK question answer || 300+MCQ || free PDF
Environmental Science General Knowledge
1. What is the primary source of energy for Earth's climate system?
a) Geothermal energy
b) Nuclear energy
c) Solar energy
d) Wind energy
Answer: c) Solar energy
2. What term describes the gradual increase in Earth's average temperature due to greenhouse gases?
a) Ozone depletion
b) Acid rain
c) Global warming
d) Deforestation
Answer: c) Global warming
3. Which gas is the most abundant greenhouse gas in Earth's atmosphere?
a) Carbon dioxide
b) Methane
c) Nitrous oxide
d) Water vapor
Answer: d) Water vapor
4. What is the term for the loss of biodiversity in an ecosystem?
a) Extinction
b) Habitat degradation
c) Species loss
d) Habitat fragmentation
Answer: b) Habitat degradation
5. What is the primary cause of acid rain?
a) Carbon dioxide
b) Sulfur dioxide and nitrogen oxides
c) Methane
d) Ozone
Answer: b) Sulfur dioxide and nitrogen oxides
6. What is the term for the depletion of the ozone layer in the stratosphere?
a) Global warming
b) Ozone hole
c) Acid rain
d) Greenhouse effect
Answer: b) Ozone hole
7. Which of the following is a renewable resource?
a) Coal
b) Natural gas
c) Wind energy
d) Uranium
Answer: c) Wind energy
8. What is the process of converting waste materials into reusable resources called?
a) Recycling
b) Composting
c) Incineration
d) Landfilling
Answer: a) Recycling
9. What term describes the practice of planting trees to restore deforested areas?
a) Reforestation
b) Afforestation
c) Deforestation
d) Desertification
Answer: a) Reforestation
10. What is the term for the process of removing salt from seawater to make it drinkable?
a) Filtration
b) Desalination
c) Purification
d) Distillation
Answer: b) Desalination
General science GK
11. What is the term for the gradual process of land degradation due to overgrazing, deforestation, and drought?
a) Desertification
b) Erosion
c) Salinization
d) Soil fertility
Answer: a) Desertification
12. What type of pollution is caused by excessive use of fertilizers and pesticides in agriculture?
a) Air pollution
b) Water pollution
c) Soil pollution
d) Noise pollution
Answer: b) Water pollution
13. What is the primary purpose of an environmental impact assessment (EIA)?
a) To determine the economic feasibility of a project
b) To assess the aesthetic value of a project
c) To evaluate the potential environmental effects of a project
d) To measure the technical efficiency of a project
Answer: c) To evaluate the potential environmental effects of a project
14. What is the term for a species that plays a critical role in maintaining the structure of an ecosystem?
a) Keystone species
b) Endangered species
c) Invasive species
d) Indicator species
Answer: a) Keystone species
15. What is the main environmental concern associated with plastic waste?
a) Air pollution
b) Soil contamination
c) Marine pollution
d) Greenhouse gas emissions
Answer: c) Marine pollution
16. What is the term for the protection and management of natural resources to prevent their depletion?
a) Conservation
b) Preservation
c) Restoration
d) Exploitation
Answer: a) Conservation
17. What is the name of the international agreement aimed at reducing greenhouse gas emissions and combating climate change?
a) Kyoto Protocol
b) Paris Agreement
c) Montreal Protocol
d) Rio Declaration
Answer: b) Paris Agreement
18. What is the primary cause of the greenhouse effect?
a) Solar radiation
b) Industrial emissions
c) Deforestation
d) Ozone depletion
Answer: b) Industrial emissions
19. What term describes the practice of growing crops and raising livestock in a way that preserves environmental health?
a) Industrial agriculture
b) Organic farming
c) Monoculture
d) Intensive farming
Answer: b) Organic farming
20. What is the term for a region of the ocean that is characterized by high levels of nutrients and high biological productivity?
a) Coral reef
b) Estuary
c) Upwelling zone
d) Pelagic zone
Answer: c) Upwelling zone
General science GK
21. What is the name of the process by which plants release water vapor into the atmosphere?
a) Photosynthesis
b) Respiration
c) Transpiration
d) Evaporation
Answer: c) Transpiration
22. What is the primary source of energy for photosynthesis in plants?
a) Heat
b) Water
c) Carbon dioxide
d) Sunlight
Answer: d) Sunlight
23. What is the term for the practice of using natural predators to control pest populations in agriculture?
a) Biological control
b) Chemical control
c) Integrated pest management
d) Mechanical control
Answer: a) Biological control
24. What is the term for the increase in the average temperature of Earth's oceans?
a) Ocean acidification
b) Ocean warming
c) Sea level rise
d) Ocean stratification
Answer: b) Ocean warming
25. What is the term for the reduction of the natural habitat of species due to human activities?
a) Habitat fragmentation
b) Habitat destruction
c) Habitat loss
d) Habitat degradation
Answer: c) Habitat loss
General science GK
Important Topics:
Quiz:
Sorry for the typing. I hope you will correct me in the comment box.
