SAT (Stage-1) Mock Test - 65

A fairly large area of arable land in the irrigated zones of India is becoming saline because of over irrigation. The salt lodged in the lower profiles of the soil comes up to the surface and destroys its fertility.

Mawjymbuin Cave is one of the well known caves in Mawsynram, Meghalaya. This cave, due to years of weathering, dripping of mineralised solutions and deposition of calcium carbonate, has given rise to magnificient stalagmites. Inside this cave is a pair of notable speleothems - breast-shaped stalactite over a massive stalagmite.

Houses in Assam are built on stilts because the state receives abundant rainfall due to which there are chances of floods. In case of flood the water might get inside the houses, if the houses are built on ground level, so in order to avoid flooding of houses, houses are built on stilts and above ground level.

Andhra Pradesh is extremely vulnerable to cyclones, storm surges and floods. The deadliest cyclone in the past 40 years was the one that struck Andhra's coast in November 1977, killing about 10,000 people. According to the State Disaster Mangement Department, about 44 per cent of the state is vulnerable to tropical storms and related disasters. Vulnerability to storm surges is not uniform along the coast of Andhra. The stretch between Nizampatnam in Guntur district and Machilipatnam in Krishna district is the most prone to storm surges.

During the hot weather period i.e from March to May the eastern and north-eastern states of the subcontinent like West Bengal, Bihar, Assam, Orissa (parts) and Bangladesh experience dramatic appearance of a special type of violent thunderstorm know as Nor'wester. It is known as 'Kaal Baisakhi' or calamity of the month of Baisakh (15^th April to 15^th May).

During cold season, the North-East trade winds prevail over the country. They blow from land to sea and hence, for most part of the country, it is a dry season. Some amount of rainfall occurs on the Tamil Nadu coast from these winds. Here, they blow from sea to land.

Chilika Lake is a brackish water lagoon, spread over the Puri, Khurda and Ganjam districts of Odisha state on the East coast of India, at the mouth of the Daya River, flowing into the Bay of Bengal, covering an area of over 1,100 km². One of India's largest saltwater lakes, it is 40 miles (65 km) long, 5 to 13 miles (8 to 20 km) wide, and about 6 feet (2 metres) deep.

It is the largest wintering ground for migratory birds on the Indian subcontinent.

Vitim River is a major tributary of the Lena River and the Aldan River is the second-longest tributary of the Lena River.

Birbhum district is triangular in shape. River Ajay forms the southern base whereas the apex of the triangle points north. The river forms the boundary between the districts of Birbhum and Bardhaman.

The neighbours of India include Afghanistan, Bhutan, Bangladesh, China, Maldives, Myanmar, Nepal, Pakistan and Sri Lanka.
Iran is not one of them.

The Indian automotive industry has emerged as a 'Sunrise Sector' in the Indian economy. India is being deemed as one of the world's fastest growing passenger car markets and second largest two wheeler manufacturer.

Graphite is a non-metal and it is the only non-metal that can conduct electricity.

Khetri is well known for its Copper Project. It was built by and is under the control of Hindustan Copper Limited, a public sector undertaking under the Government of India. Khetri is also very well known with the name 'copper'.

Bailadila Range is located near Kirandul town in the Dantewada district of southern Chhattisgarh, India. The range of hills comprises 14 deposits of super high grade haematite iron ore. Iron ore from these mines is exported to Japan and South Korea via Vishakapatnam port.

A number of minerals occur in beds or layers in the sedimentary rocks. They have been formed as a result of deposition, accumulation and concentration in horizontal strata.

The most dominant type of vegetation in India is the tropical deciduous forest. These are also called monsoon forests and are spread over the region receiving rainfall between 200 cm and 70 cm.

Konkan coastal plain is a rugged section of the western coastline of India. It is a 720 kilometres (450 miles) long coastline. It consists of the coastal districts of the western Indian states of Maharashtra, Goa and Karnataka.

Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis. It is an important source of renewable energy, and is thus an inexhaustible resource.

Non-renewable energy comes from sources that will run out or will not be replenished in our lifetimes—or even in many, many lifetimes. Most non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas. Carbon is the main element in fossil fuels. These are conventional non-renewable resources.

Hydel power uses the kinetic energy of moving water to make electricity. It is cheaper than thermal or nuclear power.

Dams are built to store water at a higher level; water is made to fall to rotate turbines that generate electricity. It is a type of non-conventional renewable resource.
Nuclear energy is a non-conventional non-renewable resource. Although nuclear energy itself is a renewable energy source, the material used in nuclear power plants is not. It could become completely renewable if the source of uranium changes from mined ore to seawater.