Consider the following four measures $(I-IV)$ that could be taken to successfully grow chickpea in an area where bacterial blight is common.
$I.$ Spray with Bordeaux mixture.
$II.$ Control of the insect vector of the disease pathogen.
$III.$ Use of disease-free seeds only.
$IV.$ Use of varieties resistant to the disease.
Which of the above measures can control the disease?

Which of the following is the richest source of protein?

Which region is considered the secondary center of origin for coffee production?

Consider the following statements:
$I$. Semen is preserved for artificial insemination by heating.
$II$. The most common bee species reared in India is $Apis$ $indica$.
$III$. An example of interspecific hybridization is a mule.
Which of the statements given above is/are not correct?

Select the incorrect statement$(s)$ from the following:
$I -$ Honey is a food of high nutritional value and is also used in the indigenous system of medicine (Ayurveda).
$II -$ Another product of honey bees is beeswax, which is very useful in the industrial sector.
$III -$ The most common species of honey bee is $Apis \text{ } indica$.
$IV -$ Beekeeping involves labor-intensive work.
$V -$ Beehives cannot be kept in courtyards, verandas, or on the roof of a house.
$VI -$ Beekeeping can be practiced in any area where there are sufficient bee pastures of some wild shrubs, fruit orchards, and cultivated crops.

Which of the following methods can be used to obtain enough food to meet the needs of the human population?