Science Practice Quiz 112

Q1.To revolutionize agriculture and address water scarcity, the text suggests developing which of the following?

A. High-yield hybrid seeds B. Chemical fertilizers C. Drought-resistant crops and dry farming techniques D. Advanced irrigation systems

Q2.What is a potential adverse effect of falling groundwater levels mentioned in the text?

A. Increased agricultural productivity B. Improved water quality C. Reduced water availability and food security D. Enhanced industrial growth

Q3.What is a direct consequence of the over-exploitation of fragile water resources in several cities?

A. Improvement in water quality B. Depletion of water resources C. Increase in groundwater levels D. Enhanced water availability

Q4.Besides insufficient quantity, what other factor can cause water scarcity, even if there is ample water available to meet the needs of the people?

A. Excessive rainfall B. Good quality of water C. Bad quality of water D. Efficient water management

Q5.Which of the following can pollute water, making it hazardous for human use?

A. Natural minerals and sediments B. Domestic and industrial wastes, chemicals, pesticides, and fertilisers C. Rainwater and snowmelt D. Underground aquifers

Q6.What is a potential long-term consequence of over-exploitation and mismanagement of water resources?

A. Increased water availability B. Ecological crisis C. Improved water quality D. Enhanced food security

Q7.What is one of the direct ecological consequences of regulating and damming rivers?

A. Increased fish migration upstream B. Improved water quality for human consumption C. Poor sediment flow and excessive sedimentation D. Expansion of natural floodplains

Q8.How do dams primarily affect aquatic fauna, according to the provided text?

A. By increasing the oxygen levels in the water B. By creating new breeding grounds for fish C. By fragmenting rivers and hindering migration for spawning D. By reducing water temperature to optimal levels

Q9.What is a significant ecological consequence of farmers shifting to water-intensive and commercial crops due to irrigation?

A. Increased soil fertility B. Reduced need for fertilisers C. Salinisation of the soil D. Improved groundwater levels

Q10.Why was the water harvesting system considered a viable alternative to multi-purpose projects?

A. Only environmentally beneficial B. Only socio-economically beneficial C. Both socio-economically and environmentally viable D. Easier to construct than large dams

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Science Practice Quiz 112