Which one of the following sets of conditions is necessary for a good cultivation of wheat?

a) Moderate temperature and moderate rainfall
b) High temperature and heavy rainfall
c) High temperature and moderate rainfall
d) Low temperature and low rainfall

Ans- a

Explanation- It is given in Standard 8 Social science book- Resource and development, page 44. Wheat requires Moderate temperature and moderate rainfall.It is crop of mid-latitude grasslands. The ideal wheat climate has winter temperature 10° to 15°C and summer temperature varying from 21°C to 26°C. The temperature should be low at the time of sowing but as the harvesting time approaches higher temperatures are required for proper ripening of the crop.It thrives well in areas receiving an annual rainfall of about 75 cm.