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Question 1:

Which of the following can be prepared in laboratory from dead organisms:

Question 2:

The percentage of methane in natural gas is-

Question 3:

The chemical substances which are secreted from endocrine glands are called

Question 4:

When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil?

Question 5:

Silk fiber is obtained from-

Question 6:

Which of the following is a way to use water economically?

Question 7:

A type of motion in which all parts of an object move in the same direction in a given time is called ____ motion?

Question 8:

Which of the following is not an example of an abiotic natural resource?

Question 9:

Which among the following defects is also known as farsightedness?

Question 10:

Workbook, in a computer application, is basically related to