NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1248 - 1251 of 2028

Access detailed explanations (illustrated with images and videos) to 2028 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time!

View Sample Explanation or View Features.

Rs. 550.00 or

How to register?

Question number: 1248

» Biology » Food Production and Management

Edit
MCQ▾

Question

The process by which humans change the characteristics of plants over time to make them better crops and more nourishing food. It is a science based on principles of genetics and cytogenetic. It aims at improving the genetic makeup of the crop plants is called:

Choices

Choice (4)Response

a.

Crop improvement

b.

Eugenics

c.

Plant breeding

d.

Genetic engineering

Question number: 1249

» Biology » Food Production and Management

Edit
MCQ▾

Question

Who is called as the body’s building blocks?

Choices

Choice (4)Response

a.

Carbohydrates

b.

Fat

c.

Protein

d.

Water

Question number: 1250

» Biology » Food Production and Management

Edit
MCQ▾

Question

The advantage of ploughing is:

I. It retains moisture for a longer period

II. It exposes soil pests natural predators

III. It helps in uprooting the weeds

IV. It provides good aeration to the roots

Find the correct statement/statement (s).

Choices

Choice (4)Response

a.

I and II only

b.

I, II, III and IV only

c.

II and III only

d.

II, III and IV only

Question number: 1251

» Biology » Food Production and Management

Edit
MCQ▾

Question

The use of machinery in agriculture helps to:

I. Get the job done faster

II. Tasks which are too heavy or too delicate for human muscles to do can be done easily

III. Reduce the dependency on human and animal labour

IV. Human Muscles Relieved.

Find out the correct statements.

Choices

Choice (4)Response

a.

I, II and III only

b.

I, II, III and IV only

c.

I, II and IV only

d.

I and II only

Developed by: