Test: Land Soil Water Natural And Wildlife Resources - 1 - UPSC

Forests cover about 31 percent of total land area of the world; the world's total forest area is just over 4 billion hectares.

70% of earth is covered with water and 30% is left it means that is land and it is covered 30%. 

About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. Water is never sitting still.

The shape of the land ('relief') Climate can be affected by mountains. Mountains receive more rainfall than low lying areas because as air is forced over the higher ground it cools, causing moist air to condense and fall out as rainfall. The higher the place is above sea level the colder it will be.

Plains and river valleys offer suitable land for agriculture. Hence, these are the densely populated areas of the world. Land is used for different purposes such as agriculture, forestry, mining, building houses, roads and setting up of industries.

The quality and the fertility of the land in the rocky slopes of the mountains and low-lying areas are not suitable for cultivation.
The quality and the fertility of the land in the rocky slopes of the mountains and low lying areas are not suitable for cultivation. Also, these areas are very cold with extreme weather conditions.

The classification of land based on relief typically includes geographical features such as plateaus, mountains, and plains. However, rivers are not considered a landform or feature of relief themselves. Rivers are water bodies that flow through various types of landforms, including plateaus, mountains, and plains. Therefore, rivers do not belong to the category of land classification based on relief.

The soil fertility depends on land fertility.

A rural area is an open swath of land that has few homes or other buildings, and not very many people. A rural areas population density is very low. Many people live in a city, or urban area.Hamlets, villages, towns, and other small settlements are in or surrounded by rural areas.

State ownership (also called public ownership and government ownership) is the ownership of an industry, asset, or enterprise by the state or a public body representing a community as opposed to an individual or private party. Governments may also use the profitable entities they own to support the general budget.