Geography Online Quiz Test

Copper mining is a significant business in the US, and in 2020 an estimated 1.2 million tonnes of the metal were unearthed. Bolivia's mines had produced cassiterite, the chief source of tin, since 1861. Mexico is the number-one silver-producing country in the world.

Energy that is produced commercially from coal is called Thermal energy.

The temperature at the surface of the Sun is about 5,600 °C. The temperature rises from the surface of the Sun inward towards the very hot centre of the Sun where it reaches about 15,000,000 °C.

Mulching, shelter belts and vegetative cover are some methods by which soil can be conserved in semi-arid and arid regions. The shelter belt is most effective in arid areas. Shelter belts are rows of trees, usually along fence lines.

Air masses, areas of high-pressure and low-pressure systems, are moved by winds in the troposphere. These weather systems lead to daily weather changes as well as seasonal weather patterns and climate systems, such as El Nino. Air in the troposphere thins as altitude increases.

Fog is an aerosol, a type of colloid consisting of a liquid (water) dispersed in a gas (air).

The Kharif crops are usually sown at the beginning of the monsoon season around June and harvested by September or October. Rice, maize, bajra, ragi, soybean, groundnut, cotton are all types of Kharif crops. The crops that are sown in the winter season (November to April) are called Rabi crops. Some of the important rabi crops are wheat, barley, peas, gram and mustard.

Sundarbans is a mangrove area in the delta formed by the confluence of the Ganges, Brahmaputra and Meghna Rivers in the Bay of Bengal. It spans from the Hooghly River in India's state of West Bengal to the Baleswar River in Bangladesh's division of Khulna.

The three major rainforests in India lie mainly in the Andaman and Nicobar Islands, Western Ghats and the Northeast Himalayas. However, some smaller ones can even be found in remote locations like Odisha, Naga Hills Manipur, etc.

Mawsynram is a town in the East Khasi Hills district of Meghalaya state in Northeastern India. Mawsynram receives the highest rainfall in India.