physical features of the philippines land forms

Scientists theorize that the earth began as a waterless mass of rock surrounded by a cloud of gas. Radioactive materials in the rock and increasing pressure in the earth's interior gradually produced enough heat to melt the interior of the earth. The heavy materials such as iron, then sank. The lig..

Continents and ocean basins (land beneath the oceans) are part of a rocky 'skin' that surrounds the main body of the earth. This skin is called the earth's crust. The crust of the earth is like the skin around an orange or an apple. The thickness of the crust varies from about 8 kilometer..

It is mainly done through geostationary satellites. These satellites are fitted with special devices. These devices can receive signals from an Earth station and transmit them again in different directions. These special devices are called transponders. A TV transmitter on an Earth station transmit..

- Physical Change Chemical Change No new or different substance is formed. The composition of the substance, that undergoes the change, remains unchanged Results in the formation of at least one new substance. The constituent particles of the new substance are ..

>o C. Two examples illustrate this. Firstly, when water is heated in a pressure cooker, more and more steam is formed and it is not able to escape out. The pressure gradually increases and as a result, the boiling point starts rising much above 100 o C (Fig.6.3..

. They ventured down the islands of Indonesia and the Philippines and crossed over to Australia. They finally crossed the Bering land bridge to the Americas. There is a great diversity in human types, with varied forms and features across the planet. We see b..

Soil ecology is the study of life in soil in harmony with abiotic factors like air, soil particles, carbonaceous materials etc. In its natural condition, soil has its own equilibrium featured by delicate balance between micro and macro organisms in the form of series of fo..

Living organisms cannot live isolated from their non-living environment. Living and the non-living environment interact with each other to form a stable system. A natural self-sufficient unit of the world comprising a biotic community (living organisms) and its abiotic physico-chemical e..

Ecosystem - Structure and Function - The characteristic structure of an ecosystem is obtained by the systematic physical organisation of the abiotic and biotic components of that particular ecosystem. The two main structural features of any ecosystem are its 'species composition..