CBSE (Central Board of Secondary Education- Board Exam) Class-7 Science: Questions 15 - 21 of 322

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 322 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 250.00 or

Question number: 15

» Nutrition in Plants » Photosynthesis - Food Making Process » Synthesis of Plant Food Other Than Carbohydrates

MCQ▾

Question

Plants can synthesis components of food other than carbohydrate are:

Choices

Choice (4) Response

a.

Vitamins

b.

Fats

c.

Protein

d.

Both b. and c. are correct

Question number: 16

» Nutrition in Plants » Mode of Nutrition in Plants » Nutrition and Its Modes

MCQ▾

Question

The mode of nutrition in which organisms make food for themselves from simple substances is called as:

Choices

Choice (4) Response

a.

Heterotrophs

b.

Autotrophic nutrition

c.

Question does not provide sufficient data or is vague

d.

None of the above

Question number: 17

» Nutrition in Plants » Mode of Nutrition in Plants » Nutrients

MCQ▾

Question

All components of food which are necessary for our body are called as:

Choices

Choice (4) Response

a.

Carbohydrates

b.

Nutrients

c.

Nutrition

d.

All of the above

Question number: 18

» Fibre to Fabric » Animal Fibres » Processing Fibres Into Wool

MCQ▾

Question

Grease wool is processed into its finished products by either:

Choices

Choice (4) Response

a.

Worsted system

b.

Woollen system

c.

Worsted & Woollen system

d.

Question does not provide sufficient data or is vague

Question number: 19

» Weather, Climate and Adaptations of Animals to Climate » Climate and Adaptation » Migratory Birds

MCQ▾

Question

How birds in polar region protect themselves from extreme cold in their habitat?

Choices

Choice (4) Response

a.

With their feathers & By migration

b.

With their feathers

c.

By migration

d.

None of the above

Question number: 20

» Physical and Chemical Changes » Rusting of Iron » Prevention of Rusting

MCQ▾

Question

Alloying is defined as:

Choices

Choice (4) Response

a.

Corrosion

b.

Transformation

c.

Way to prevent rusting

d.

All of the above

Question number: 21

» Physical and Chemical Changes » Rusting of Iron » Rust Formation

MCQ▾

Question

The process of formation of rust is called as:

Choices

Choice (4) Response

a.

Rusting

b.

Crystallization

c.

Rust

d.

None of the above

f Page
Sign In