1. How many of the following statements is/are correct?
1. Glacial retreat is the process by which glaciers melt faster than new snow and ice can accumulate.
2. The retreat exposes bedrock and creates glacial lakes, threatening glacial lake outburst floods (GLOFs).
3. The Randolph Inventory is a record of Glaciers which is used for Global Land Ice Measurements from Space.
4. The eastern Himalayan region is warming at a rate surpassing the global average.
(a) One only (b) Two only (c) Three only (d) All four
2. How many of the following statements is/are correct?
1. Black holes warp spacetime around them such that anything that gets close enough to the centre, even light, cannot escape back to the universe.
2. A black hole forms when a star dies.
3. In the Milky Way, there are around a thousand black holes accompanied by X-ray emissions.
4. The Gaia BH1 is the closest black hole to earth yet.
(a) One only (b) Two only (c) Three only (d) All four
3. Trade wars are considered a side effect of protectionist policies (as seen before the New Economic Order of the mid-20th century) and are gaining a resurgence in the 21st century. In this context, how many of the following statements is/are correct?
1. The mercantilists believed that free trade in the long-run enriches all nations engaged in such trade.
2. Adam Smith on the other hand believed that a country can grow its wealth through international trade but at the cost of impoverishing other nations.
3. Retaliatory tariffs and competitive currency devaluations during the interim period between the two major World Wars led to a significant drop in global trade and investment.
4. In recent decades, countries such as China and Japan have been accused of devaluing their currencies to help their exporters, and to achieve a trade surplus with other major economies such as the United States.
(a) One only (b) Two only (c) Three only (d) All four
4. How many of the following statements about the Jevons Paradox is/are correct?
1. Named after English economist William Stanley Jevons
2. It posits that when a resource becomes more efficient to use, demand can increase—rather than decrease—as the price to use the resource drops.
3. The falling cost of improved productivity through GenAI will likely benefit companies generally, as they will predominantly be consumers of these technologies.
4. As AI gets more efficient and accessible, we will see its use skyrocket. The need for data centres and the vast amounts of power required to run them will drive a lot of AI investing.
(a) One only (b) Two only (c) Three only (d) All four
ANSWERS
1 (d) 2 (d) 3 (b) 4 (d)
