The method of soil conservation in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash is called?
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According to the distance of planets from the Sun, which of the following order is correct?
Concentration of water vapour in troposphere is
The Equator does NOT pass through which of the following countries?
Which of the following is a viral disease?
Rectifiers convert _____.
Acceleration due to gravity on a planet decreases with ______.
Which of the following physical quantity measures the rate of work done?