Answer: Option B. -> harvesting
:
B
The process of collecting the ripe crops from the field is known as harvesting. This is the final step before the product is ready to be sold in markets.

Answer: Option A. -> True
:
A
Root and tuber crops are a type of food crops. These crops usually have the edible part under the ground. They are a good source of energy. Potato is an example.

Answer: Option D. -> Both vinegar and salt
:
D
$\bullet$Preservatives are the substancesthat are generally added to kill or inhibit the growth of microorganisms in a food item.
$\bullet$Common salt(NaCl) and sugar are natural preservatives, vinegarand sodium benzoateare chemical preservatives.
$\bullet$Common salt removes the water content in the pickled mangoes. In the absence of water, bacteria can't multiply and hence itact as a preservative.
$\bullet$ Similarly, fishermen add saltto fish to keep them fresh for a longer period of time.

Answer: Option C. -> Pulses
:
C
Pulses are food crops which are rich in protein and fibre.
They help in the growth of our body. The other options contain cash crops which are not edible.

Answer: Option C. -> Ploughing→Sowing→Irrigation
:
C
The first step in farming is ploughing the field and getting it ready for the seeds to be put. The next step is putting the seeds in the ground which is known as sowing.
Sowing isfollowed by irrigation which involves the controlled flow of water onto the ploughed fields.
Finally, when the crop is ripe it is harvested.

Answer: Option A. -> True
:
A
Food preservation is the prevention of the growth of bacteria, fungi and other microorganisms in food items, so that it can be used for a long time.
Different methods of food preservation are use of preservatives, air-tight packaging, freezing, etc.

Answer: Option B. -> False
:
B
Not everyone has access to healthy and nutritious food;especially the economically backward section of the society. The Midday meal scheme was introduced in the year 1995 by the Indian government. It was introduced for the children of economically backward section of our society.

Answer: Option B. -> harvesting
:
B
Harvesting is the process of collecting the ripe crop from the field. Sam's father is collecting onions from the field which means he is harvesting the onions.

Answer: Option B. -> False
:
B
Crops need to be irrigated regularly for getting good yield.
If the crops are not irrigated regularly, they will eventually die.

Answer: Option A. -> cold, dark
:
A
When oil and fats are exposed to sunlight or kept in a warm place, they get spoilt. Hence, oils and fats should be stored in a cold and dark place.