CBSE Class-7 Science: Questions 145 - 152 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: 145

» Soil » Soil Profile » Horizons of Soil

MCQ▾

Question

Which horizon of the soil is called as sub soil?

Choices

Choice (4) Response

a.

B-horizon

b.

O-horizon

c.

C-horizon

d.

A-horizon

Question number: 146

» Reproduction in Plants » Modes of Reproduction » Vegetative Propagation

MCQ▾

Question

Name some stem which grow into new plants:

Choices

Choice (4) Response

a.

Onion, Ginger

b.

Strawberry, oxalis many grasses and corn

c.

Potato

d.

All a. , b. and c. are correct

Question number: 147

» Respiration in Organisms » How Do We Breathe? » Sneezing

MCQ▾

Question

Sudden involuntary expulsion of air from the nose and mouth due to irritation of one’s nostrils is called as:

Choices

Choice (4) Response

a.

Exhalation

b.

Inhalation

c.

Sneezing

d.

All of the above

Question number: 148

» Transportation in Animals and Plants » Excretion in Animals » Excretory System in Humans

MCQ▾

Question

Human beings excreted body waste in the form of:

Choices

Choice (4) Response

a.

Solids

b.

Liquids

c.

Gases

d.

All a. , b. and c. are correct

Question number: 149

» Soil » Soil Types » Clayey Soil

MCQ▾

Question

Soil which gets water logged easily and does not allow air required for plant roots to breathe is called as

Choices

Choice (4) Response

a.

Clayey soil

b.

Loamy soil

c.

Sandy soil

d.

All of the above

Question number: 150

» Soil » Soil and Crops » Types of Soil and Its Impact on Crop Production

MCQ▾

Question

Soil rich in clay and organic matter is good for:

Choices

Choice (4) Response

a.

Wheat

b.

Cotton

c.

Paddy

d.

Question does not provide sufficient data or is vague

Question number: 151

» Reproduction in Plants » Modes of Reproduction » Fragmentation

MCQ▾

Question

Mode of reproduction in lower plants such as green algae is:

Choices

Choice (4) Response

a.

Fragmentation

b.

Spore

c.

Budding

d.

All of the above

Question number: 152

» Respiration in Organisms » Do Plants Also Respire? » Process of Respiration in Plants

MCQ▾

Question

Respiration in plants differs from that in animals in three aspects:

Choices

Choice (4) Response

a.

Little transport of gases occurs in plants

b.

All parts of a plants perform respiration individually

c.

Plant respiration occurs at much slower rate

d.

All a. , b. and c. are correct

Sign In