BPP Environmental Studies 1 — Questions and Answers
Question 1: What is the main cause of global warming according to current scientific consensus?
- Volcanic eruptions
- Solar flares
- Greenhouse gas emissions from human activities (Correct answer)
- Changes in Earth's orbit
Correct answer: Greenhouse gas emissions from human activities
The burning of fossil fuels and deforestation release greenhouse gases like COâ‚‚ that trap heat in the atmosphere, causing the planet to warm.
Question 2: What is biodiversity?
- The variety of climates on Earth
- The diversity of life forms in an ecosystem (Correct answer)
- The number of countries in a region
- The study of soil composition
Correct answer: The diversity of life forms in an ecosystem
Biodiversity refers to the variety of living organisms—species, genes, and ecosystems—found on Earth, which is essential for healthy ecosystems.
Question 3: What are renewable energy sources?
- Coal and natural gas
- Oil and nuclear power
- Solar, wind, and hydroelectric power (Correct answer)
- Diesel and propane
Correct answer: Solar, wind, and hydroelectric power
Renewable energy sources are naturally replenished on human timescales and include solar, wind, hydroelectric, geothermal, and biomass energy.
Question 4: What is deforestation?
- Planting trees in urban areas
- The large-scale removal of forests (Correct answer)
- A natural forest renewal cycle
- A method of sustainable logging
Correct answer: The large-scale removal of forests
Deforestation is the large-scale clearing or removal of forests, often for agriculture, logging, or urban development, leading to habitat loss and carbon release.
Question 5: What does recycling accomplish?
- Increases landfill waste
- Reduces raw material consumption and waste (Correct answer)
- Uses more energy than producing new materials
- Only applies to paper products
Correct answer: Reduces raw material consumption and waste
Recycling converts used materials into new products, reducing the need for raw materials, saving energy, and decreasing the amount of waste sent to landfills.
Question 6: What is an ecosystem?
- A single plant species
- A community of organisms interacting with their physical environment (Correct answer)
- A type of soil used in agriculture
- The study of space environments
Correct answer: A community of organisms interacting with their physical environment
An ecosystem is a community of living organisms (plants, animals, microbes) interacting with each other and their non-living environment (air, water, soil).
BPP Environmental Studies 1
What is the main cause of global warming according to current scientific consensus?