Questions and Answers
Q1. What percentage of the Earth's surface is covered by water?
A) 51%
B) 61%
C) 71%
D) 81%
A1. The correct answer is C) 71%. This fact highlights the abundance of water on Earth's surface, yet it contrasts with the scarcity of accessible freshwater suitable for human use.
Q2. Which factor does not contribute to water scarcity?
A) Climate change
B) Industrialization
C) Overpopulation
D) Overuse of water resources
A2. B) Industrialization is not directly a cause of water scarcity; instead, it is more associated with water pollution. The other options directly impact the availability of freshwater.
Q3. True or False: The majority of Earth's water is suitable for human use.
A) True
B) False
A3. B) False. Although a large portion of the Earth's surface is covered by water, only a small fraction is accessible and suitable for human use, mainly due to the prevalence of saltwater and the inaccessibility of freshwater sources.
Q4. What is a primary consequence of water pollution?
A) Increased tourism
B) Improved aquatic ecosystems
C) Disruption of aquatic ecosystems
D) Enhanced water quality
A4. C) Disruption of aquatic ecosystems. Water pollution, often caused by industrial activities and agricultural runoff, negatively affects aquatic life and disrupts the balance of ecosystems.
Q5. Fill in the blank: Inefficient water management practices contribute to ______.
A) water abundance
B) water scarcity
C) water creation
D) water destruction
A5. B) water scarcity. Poor management, such as inadequate infrastructure and lack of sustainable policies, exacerbates the issue of water scarcity.
Q6. Which of the following is not a direct result of climate change on water resources?
A) Droughts
B) Floods
C) Increased rainfall
D) Decreased industrial pollution
A6. D) Decreased industrial pollution. While climate change impacts water resources through droughts, floods, and variations in rainfall, it does not directly lead to decreased industrial pollution.
Q7. True or False: Overpopulation has no impact on water scarcity.
A) True
B) False
A7. B) False. Overpopulation significantly contributes to water scarcity by increasing the demand for and use of limited water resources.
Q8. The main cause of water pollution is:
A) Natural disasters
B) Recreational activities
C) Industrial activities
D) Rainwater
A8. C) Industrial activities. These are a primary source of water pollution due to the release of chemicals and waste products into water bodies.
Q9. Fill in the blank: ______ is crucial for addressing water crises globally.
A) Ignorance
B) Global cooperation
C) Decreased regulation
D) Individual effort
A9. B) Global cooperation. Combating water crises requires collective efforts, including international collaboration and policy-making.
Q10. Which practice does not help in conserving water?
A) Using water-saving appliances
B) Frequent and unchecked water leakage
C) Rainwater harvesting
D) Implementing drip irrigation
A10. B) Frequent and unchecked water leakage. This practice leads to water wastage, contrary to conservation efforts.