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Changes are constanly occurring around us and within us,many changes occur in the environment-in the air,natural waters,land,and in organisms that thrive there.sometimes matter changes on its own likf when plants decay or a piece of iron gets rusty.you have leared in biology that plants manufacture food by photosynthesis, a chemical proccess that…[Read more]

Changes are constanly occurring around us and within us,many changes occur in the environment-in the air,natural waters,land,and in organisms that thrive there.sometimes matter changes on its own likf when plants decay or a piece of iron gets rusty.

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The biosphere is made up of all living things and their habitat. Life is usually confined to the atmospher,the land surface,the top layer of the soil,and the upper layers of the oceans, lakes and rivers. The existence of life in the upper atm0sphere depends on the supply of water as well as carbon dioxide. Few living things are found above 3 200…[Read more]

The biosphere is made up of all living things and their habitat. Life is usually confined to the atmospher,the land surface,the top layer of the soil,and the upper layers of the oceans, lakes and rivers. The existence of life in the upper atm0sphere depends on the supply of water as well as carbon dioxide.

Perhaps,you think of salt as the one you use for seasoning food,sodium chloride or table salt. The term salts includes all comrounds of metals and nonmetals. A simple salt is formed when a metal combines with one or more nonmetals. Oxygen is usually the second nonmel. Hence.they are called oxysalts. Double salts are formed when two or more metals…[Read more]