The current produced by the upwelling of cold water off the coast of Chile and Peru is known as ______.

Which of the following statements is/are correct ?
$1$. The major constituent mineral of granite rock is quartz.
$2$. The major constituent mineral of sandstone rock is feldspar.
$3$. The major constituent mineral of limestone rock is dolomite,

Select the correct answer using the codes given below.

Which of the following is the chief characteristic of commercial grain farming of the middle latitude grasslands?
$1$. The size of farms is generally large
$2$. Cultivation is highly mechanized
$3$. It is a type of extensive farming

Match the following