1. Saudi Arabia
2. North Korea
3. Czech Republic
4. Trinidad and Tobago
Option “3” is correct. Prague is the capital and largest city in the Czech Republic, the 14th largest city in the European Union and also the historical capital of Bohemia.
Option “3” is correct. Crops that are sown during the southwest monsoon season are called kharif or monsoon crops. These crops are sown at the beginning of the season around end May to early June and are harvested post the monsoon rains beginning September-October.
84. Spraying of DDT on crops causes pollution of __________.
1. Air & Soil
2. Crops & Air
3. Soil & Water
4. Air & Water
Option “3” is correct. Spraying of DDT on crops causes pollution of Soil and Water pollution.
85. Which of the following region in India is now regarded as an “Ecological Hot Spot”?
1. Western Himalayas
2. Central Himalayas
3. Western Ghats
4. Eastern Ghats
Option “3” is correct. Western Ghats is a mountain range that runs parallel to the western coast of the Indian peninsula, located entirely in India. It is a UNESCO World Heritage Site and is one of the eight “hottest hot-spots” of biological diversity in the world.
86. The source of energy that causes the least global warming is –
1. Coal
2. Geothermal energy
3. Natural Gas
4. Petroleum
Option “2” is correct. Geothermal energy is the heat from the Earth. It’s clean and sustainable. Resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the Earth’s surface, and down even deeper to the extremely high temperatures of molten rock called magma.
87. Which country is known as ‘Land of Midnight Sun’?
1. Sweden
2. Norway
3. Germany
4. Finland
Option “2” is correct. Norway is called the land of the midnight sun because the northern part of the country is located above the arctic circle, where the sun shines 24 hours a day from Mid-May to Mid-July.
88. Which river basin is shared by more than 10 States of India?
1. Indus
2. Brahmaputra
3. Ganga
4. Damodar
Option “3” is correct. The Ganga basin covers 10 states viz., Uttarakhand, Uttar Pradesh, Madhya Pradesh, Rajasthan, Haryana, Himachal Pradesh, Chhattisgarh, Jharkhand, Bihar, West Bengal.
89. Which of the following is not a commercial source of energy?
1. Coal
2. Petroleum
3. Natural Gas
4. Firewood
Option “4” is correct. Firewood is a non-commercial source of energy.
90. Which of the following is the uppermost layer of the atmosphere?
Option “4” is correct. The exosphere is the uppermost layer, where the atmosphere thins out and merges with interplanetary space. It is located directly above the thermosphere.
