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Preeti Dabral 3 years, 1 month ago
During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
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Census Method:
- The Census covers individual/unit belonging to the population.
- Since all items are studied under census method, highest degree of accuracy is possible.
- As all items are studied under census method, this method is very expensive and involves a lot of money and efforts.
- The Census method is very time consuming as all items are studied.
- The Census method is suitable when items in the universe have diverse characteristics.
- This method is suitable when the area under investigation is relatively small.
Sample Method:
- The sample is smaller group selected from the population from which the relevant information would be sought.
- Since only representative samples are studied under sample method. It is less accurate. However errors can be easily detected and removed.
- As only few samples are studied under sample method, this method is comparatively less expensive.
- The Sample method is less time consuming as only samples are studied.
- The Sample method is suitable when items in the universe are homogeneous.
- This method is suitable when the area under investigation is large.
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The speed of light in vacuum (c) = 1 new unit of length s-1
Time taken by light to reach the Earth,
t = 8 min + 20s = (8 {tex}\times{/tex} 60 + 20) s = 500 s
{tex}\therefore{/tex} Distance between the Sun and the Earth
= Speed of light {tex}\times{/tex} Time
x = c {tex}\times{/tex} t = 1 new unit of length s-1 {tex}\times{/tex} 500 s
= 500 new units of length
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In modern parlance, a colony is a territory subject to a form of foreign rule. Though dominated by the foreign colonizers, colonies remain separate from the administration of the original country of the colonizers, the metropolitan state.
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A design is a plan or specification for the construction of an object or system or for the implementation of an activity or process or the result of that plan or specification in the form of a prototype, product, or process. The verb to design expresses the process of developing a design.
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Kashish Sawariya 3 years, 1 month ago
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