Good question put by Dr. Bhat. Earth is our home planet. Scientist believe earth and moon formed around the same time as the rest of the solar system. The picture of earth is sometimes called blue marble.

Land is the part of the earth surface that is not covered by water. It is the earth surface occupied by Continents and Islands.

Soil is the upper layer of earth in which plant grow. It is the material found on the surface of the earth which composed of organic and inorganic material including air and water.

1. Soil is the upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles.

2. Land is the part of the earth's surface that is not covered by water, as opposed to the sea or the air.

3. Earth is the planet on which we live; the world, or the substance of the land surface; soil

Soil is the weathered superficial layer of the Earth crust which serves as the natural medium for the growth of plants.

Land is part of Earth surface not covered by a body of water; the part of the Earth"s surface occupied by continents and Islands.

Earth is a land surface on which we live and move about.

The meanings that constellate around soil related words are very interesting indeed: they reflect the place soils stand in our cosmoview. Therefore, are you asking for scientific concepts or are you also interested on all kinds of meaning those words can bare (e.g. poetical, vernacular)?

By definition, the Universe is commonly defined as the totality of everything that exists including all physical space, time, matter and energy, the planets, stars, galaxies etc. The Earth is minute part of the Universe. Moving around the sun are eight spheroid bodies called planets. Our earth is one of these eight planets on which we live on. It is the third planet from the Sun. It is sometimes also referred to as the World, the Blue Planet. The Earth is the only place in the Universe where we know life exists. It is a home of millions of species including humans, animals and plants. Some living things are very tiny. Others may be very large. Land, air, water and life are the major four parts of the earth.

The term “Land” and “Soil” are often confused by students as synonyms but, this is not true. Land by definition, the term “Land” represents the surface area of earth which is not covered by oceans or other bodies of water. It occupies nearly 20 percent of the earth surface.

Soil is a naturally occurring thin layer of materials on the part of Earth's surface (land) composed of mineral and organic solids, gases, liquids and living organism which can serve as medium for plant growth. It forms at the surface of land - it is the “skin of the earth” (just like peel of orange). The development of soil takes time, between hundreds and thousands of years, and consists of diverse materials which are both inorganic and organic.

Could you please provide the reference for the definition Arvind Singh ? Thanks