Cirrus clouds are found at high altitude. The altitude at which it is found is 16, 500 to 45,000 feet. Cumulus, Stratocumulus and Stratus clouds are found at low altitude.

Political situation in north-west India was suitable for Babur to enter India in 1526. In 1526 he defeated the Sultan of Delhi, Ibrahim Lodi and his Afghan supporters, at Panipat and captured Delhi and Agra. Kabul and Qandhar became an integral part of an empire comprising North India . Since these areas had always acted as a staging place for an invasion of India and provided security from external invasions. These two areas helped to strengthen India’s foreign trade with China and Mediterranean seaports .

Mount Vesuvius is located nearby Naples in Italy. For the majority of time in known history, it remained to be a dormant mountain. However, it erupted in 1944 causing heavy devastation.

The Chalukya kingdom rapidly rose to prominence during the reign of Pulakesin II (AD 610–642). He was the greatest ruler of the Chalukyas. He consolidated his authority in Maharashtra and conquered large parts of Deccan. He defeated Harshavardhana in circa AD 630 and acquired the title of dakshinapatheshvara (lord of the south).

The Pallavas established their authority over south Andhra Pradesh and north Tamil Nadu with capital at Kanchi. Kanchi under them became an important temple town and a center of trade and commerce. The Pallavas rose to power during the reign of Mahendravarman (AD 600–630) and Narasimhavarman I (AD 630–668).

The Atal Pension Yojana (APY) is primarily focused on all citizens in the unorganised sector, who join the NPS. However, all citizens of the country in the eligible category may join the scheme. APY is being implemented with effect from 1st June, 2015. The Scheme aims to provide monthly pension to eligible subscribers not covered under any organized pension scheme.

Canary ocean current is a cold current. It is found in the North-Atlantic Ocean. It ameliorates heating effect of the Sahara dessert. It moves in clockwise direction.

Current Account is the sum of the balance of trade (net earnings on exports minus payments for imports), factor income (earnings on foreign investments minus payments made to foreign investors) and unilateral transfers.

The capital account records the net change in ownership of foreign assets. It includes the reserve account the foreign exchange market operations of a nation’s central bank, along with loans and investments between the country and the rest of world.

Shale Gas-

* Statement (A) is correct. Shale Gas is an unconventional natural resource.

* Statement (B) is incorrect. Apart from Ethane and Butane, shale gas is composed of methane, propane, pentane, etc.

* Statement (C) is correct. Extraction of shale requires almost 15,000 m3/well.

* Statement (D) is correct. Shale gas extraction impacts the environment adversely.