What share of cultivated acreage relies on irrigation networks ?
Show answer Hide answer
Answer: B. 70%
Explanation
Irrigation infrastructure supplies water to a large proportion of cultivated land in arid regions. Agricultural data confirms that roughly seventy percent of farmed acreage relies on artificial irrigation. Canal networks and tube wells ensure reliable crop hydration despite erratic seasonal rainfall. River diversion canals form the backbone of large-scale irrigation systems in dry river basins. Water management prevents crop failure caused by prolonged droughts and insufficient monsoon rains. Modern drip and sprinkler irrigation technologies help conserve scarce water resources efficiently.
Agricultural productivity depends entirely on maintaining aging irrigation canals and barrages. Water allocation disputes often arise between upstream and downstream farming communities. Food security in arid nations requires massive public investment in irrigation infrastructure. Option A underestimates the percentage of farmland supported by irrigation networks. Option C overestimates irrigation coverage, ignoring regions that rely solely on rainfall. Option D provides an inaccurate percentage that contradicts official agricultural irrigation surveys.
Related questions
Q1. What is the term for a government directive barring the entry or exit of commercial vessels or restricting external trade with a foreign country ?
Show answer Hide answer
Answer: A. Embargo
An embargo is an official government order prohibiting commercial trade with a foreign country. This restrictive trade policy can bar the entry or exit of commercial shipping vessels. Governments impose embargoes to exer...
Q2. What percentage of the aggregate area is cultivated within Pakistan ?
Show answer Hide answer
Answer: D. 25%
Approximately 25% of Pakistan total land area is utilized for crop cultivation. Geographic surveys and agricultural statistics confirm the extent of cultivated acreage. Arable land constraints make efficient farming prac...
Q3. What volume of timber is supplied by the forestry sector ?
Show answer Hide answer
Answer: B. 3.5 million hectares
National forestry statistics report the total area of timber supplied by the forestry sector. Government resource assessments calculate productive forest acreage dedicated to commercial timber extraction. Data collection...
Q4. Holding all inputs constant except one while expanding a variable factor typically results in progressively declining marginal product for that factor; this illustrates ?
Show answer Hide answer
Answer: B. The law of diminishing returns
The law of diminishing returns states that adding variable inputs eventually yields smaller marginal output. Holding all other factors constant while expanding a single input causes productivity gains to slow. Eventually...
Q5. Which subsequent option is NOT a requisite property of an ideal voting mechanism ?
Show answer Hide answer
Answer: A. The median voter always wins
Arrow theorem proves no ranked voting system satisfies every single desired fairness criterion simultaneously. The median voter outcome relies on specific assumptions like single peaked preferences in spatial models. Des...
Q6. How does the Eurozone stack up against the USA as a viable optimal currency area (OCA) ?
Show answer Hide answer
Answer: B. The eurozone has a lower degree of labour mobility than the USA and labour law is much more restrictive in the erozone than in the USA On these measures the eurozone is less likely to be an OCA than is the USA
The Eurozone exhibits lower labor mobility compared to the highly mobile United States labor market. Labor laws across European member states are generally much more restrictive than American regulations. These structura...