Defination of lithosphere.

The lithosphere (Greek: λίθος [lithos] for "rocky" + σφαῖρα [sphaira] for "sphere") is the rigid outermost shell of a ro... Read more »

Defination of atmosphere of the Earth.

The atmosphere of Earth is a layer of gases surrounding the planet Earth that is retained by Earth's gravity. The atmosphere protects li... Read more »

Defination of hydrosphere.

A hydrosphere (from Greek ὕδωρ - hydor, "water" and σφαῖρα - sphaira, "sphere") in physical geography describes the comb... Read more »

Europe-The fifth largest continent

Europe (pronunciation: /ˈjʊərəp/ yewr-əp or /ˈjɜrəp/ yur-əp) is, by convention, one of the world's seven continents. Comprising the wes... Read more »

South America-The fourth largest continent

South America (Spanish: América del Sur, Sudamérica or Suramérica; Portuguese: América do Sul; Quechua and Aymara: Urin Awya Yala; Guarani:... Read more »

North America-The third largest continent

North America (Spanish: América del Norte or Norteamérica; French: Amérique du Nord; Dutch: Noord-Amerika; Papiamento: Nort Amerika; Kalaal... Read more »

Africa-The second largest continent

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² (11.7 million sq mi) inc... Read more »

Defination of photosynthesis.

Photosynthesis (play /foʊtoʊˈsɪnθəsɪs/; from the Greek φώτο- [photo-], "light," and σύνθεσις [synthesis], "putting together... Read more »

Defination of transpiration.

Transpiration is a process similar to evaporation. It is a part of the water cycle, and it is the loss of water vapor from parts of plants (... Read more »

Asia - The Largest Continent

Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of t... Read more »

What Are Bacteria?

Bacteria are a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ran... Read more »

Plant Cell And Animal Cell.

Animal Cell An animal cell is a form of eukaryotic cell that makes up many tissues in animals. The animal cell is distinct from other euka... Read more »