Question

Select the correct statements from the following
a. Rice, maize, millets and sorghum are rich sources of carbohydrates.
b. Flowering in plants is dependent on photoperiods.
c. Kharif crops are grown in winter season. -
d. Calcium, boron, copper and zinc are micronutrients.
e Excess use of fertilizers can lead to water pollution.
1. Hybridisation is the process of producing HYVs of crops by crossing genetically similar plants.
a, b, e andf
a, b and e only
b, c and d only
b, c, e and f​

Answer 1

Answer:

The correct answer will be -

(A) a, b, e, and f

Explanation:

By checking all the options -

Option (A) -

Rice, maize, millets, and sorghum are rich in carbohydrates.

So this is True.

Option (B) -

Flowering plants depend on photoperiod.

So this is True.

Option (C) -

Kharif crops are also known as monsoon crops grown during early June,

So this is False.

Option (D) -

Calcium is a macronutrient and the remaining are micronutrients.

So this is False.

Option (E) -

Excess use of fertilizers can lead to water pollution.

This is True.

Option (F) -

Hybridization is the process of producing HYVs of crops by crossing genetically similar plants.

This is true.

So a, b, e, and f are true.

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Answer 2

Answer:

The correct statements are a,b,e and f.

Explanation:

By checking all the options:-    

Option (a)

Carbohydrates may be found in a broad variety of foods. Rich sources of carbohydrates include sorghum, maize, rice, millets, and corn.

Hence, option (a) is a correct statement.

Option (b)

The length of the daily light period, or photoperiod, is one of the most significant factors influencing flowering time in temperate climates. Therefore, photoperiods are necessary for flowering in plants.

Hence, option (b) is a correct statement.

Option (c)

Kharif crops are those that are planted when the monsoon season begins and are harvested between September and October.

Hence, option (c) is an incorrect statement.

Option (d)

Calcium is a macronutrient, whereas the others are micronutrients.

Hence, option (d) is an incorrect statement.

Option (e)

The majority of fertilizers include nitrogen salts that are very soluble in water. Rainwater removes these salts, which then make their way to the water bodies. They contribute to the acidification of aquatic bodies. Thus, fertilizers contribute to water pollution.

Hence, option (e) is a correct statement.

Option (f)

Hybridization is the practice of crossing genetically related plants to create a high-yielding variety of crops.

Hence, option (f) is a correct statement.

The correct statements are a,b,e and f.

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