Flashcards on Essential General Knowledge for Students
Essential General Knowledge for Students: Your Study Guide
Tap to flip · Swipe to navigate
Environment
16 cards
Card 1
Question: What are the main environmental problems mentioned that we face today?
Answer: Climate change, global warming, and the greenhouse effect.
Card 2
Question: What effect does the rising global temperature have on glaciers and sea level?
Answer: It causes glaciers to melt and leads to a rise in sea level.
Card 3
Question: What issue with the ozone layer is highlighted and why is it dangerous?
Answer: An ozone hole lets in dangerous ultraviolet rays.
Card 4
Question: Name some natural disasters caused by environmental changes like climate change.
Answer: Deadly storms, floods, heat waves, droughts, and forest fires.
Card 5
Question: What are common causes of air pollution listed?
Answer: Car exhausts, waste gases, smog, and lead from unleaded petrol.
Card 6
Question: How can some poisonous gases in the atmosphere harm the earth after they dissolve?
Answer: They can fall to the earth as acid rain.
Card 7
Question: What are common sources of water pollution mentioned?
Answer: Factories releasing dangerous substances into rivers and lakes, and sea pollution from waste and oil released by tankers.
Card 8
Question: What is a major consequence of oil released by tankers into the sea?
Answer: It kills fish and other species.
Card 9
Question: Where is much household waste often dumped?
Answer: In landfills.
Card 10
Question: Why do industrial processes cause toxic pollution and what is a common (but harmful) disposal method?
Answer: Industrial processes produce toxic chemicals, and it is cheaper to dump them into rivers or holes in the ground, which contaminates soil and water.