Option “4” is correct. Ebony and Mahogany trees are associated with Tropical evergreen forests. Tropical evergreen forests are usually found in areas receiving more than 200 cm of rainfall and having a temperature of 15 °C to 30 °C.
492. Which one of the following mountains is not built during the Tertiary period?
Option “4” is correct. Aravalli Mountain is not built during the tertiary period. The Aravalli Range literally meaning ‘line of peaks’, is a range of mountains in western India running approximately 800 km in a northeastern direction across Indian states of Gujarat, Rajasthan, Haryana and Delhi.
493. Which one of the following volcanoes is called the Light House of the Mediterranean?
1. Etna
2. Vesuvius
3. Kilimanjaro
4. Stromboli
Option “4” is correct. Stromboli is called the lighthouse of the Mediterranean. Stromboli is a small island in the Tyrrhenian Sea, off the north coast of Sicily, containing one of the three active volcanoes in Italy.
Option “3” is correct. Africa’s highest mountain peak mt. Kilimanjaro lies in Tanzania.
495. The coldest place on the earth is-
1. Halifax
2. Chicago
3. Siachin
4. Verkhoyansk
Option “4” is correct. The coldest place on the earth is Verkhoyansk. Verkhoyansk is a town in Verkhoyansky District of the Sakha Republic, Russia, located on the Yana River near the Arctic Circle, 675 kilometers from Yakutsk.
496. The wide treeless grassy plains in South America are called-
1. Selvas
2. Pampas
3. Prairies
4. Steppes
Option “2” is correct. The wide treeless grassy plains in South America are called Pampas.
Option “3” is correct. Nathu La is a mountain pass in the Himalayas. It connects the Indian state of Sikkim with China’s Tibet Autonomous Region
498. ‘Radcliffe line’ demarcates the boundary between-
1. India and China
2. India and Pakistan
3. India and Afghanistan
4. India and Bhutan
Option “2” is correct. The Radcliffe Line was published on 17 August 1947 as a boundary demarcation line between India and Pakistan upon the partition of India.
499. Which of the following rivers flows from south to north?
1. Son
2. Krishna
3. Mahanadi
4. Ganga
Option “1” is correct. The Son originates near Amarkantak in Madhya Pradesh, just east of the headwater of the Narmada River. It flows from North to South. The Son river at 784 kilometres (487 mi) long, is one of the largest rivers of India. Its chief tributaries are the Rihand and the North Koel.
500. Which one of the following rivers in India has been declared as the National River?
1. Ganga
2. Yamuna
3. Krishna
4. Son
Option “1” is correct. The Ganges is a trans-boundary river of India and Bangladesh. The 2,525 km (1,569 mi) river rises in the western Himalayas in the Indian state of Uttarakhand, and flows south and east through the Gangetic Plain of North India into Bangladesh, where it empties into the Bay of Bengal. It has been declared as the National River of India.
