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The earth's environment has been composed in a way which sustains life on this planet. Through on process, the different constituents of the atmosphere are consumed and through the other, these constituents are released into the atmosphere.
But due to industrial revolution, and speedy exploitation of natural resources, the composition of the atmosphere has been changed undesirably. In other words we have polluted the atmosphere.
Pollution is defined as undesirable change in physical, chemical or biological characteristic of are, land and water which is causing harmful effects on our life or that of other living organism and cultural assets. The undesirable or unwanted foreign species or matter causing pollution air, water soil or any segment of environment are called pollutants.
In arthropods why isn't gas exchange done through cutaneous diffusion? In arthropods the impermeability of the exoskeleton makes the passage of gases complex. In addition the n
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(i) Name one fibrous and one globular protein. fibrous globular (ii) Outline the difference in structure between a fibrous and a globular protein. ' shows the ef
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HISTORY ON CLASSIFICATION IN BIOLOGY
what are the principle sources of excessive nitrate and phosphate in rivers and lakes?
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