CBSE Class-8 Science: Questions 219 - 226 of 469

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Question number: 219

» Reaching the Age of Adolescence » Adolescence and Puberty » Secondary Sexual Characters

MCQ▾

Question

Boy’s secondary sexual characters are:

Choices

Choice (4) Response

a.

Hair grows under the arms and in pubic region

b.

Develop hair on their chest

c.

Boys begin to grow facial hair that is moustaches and beard

d.

All a. , b. and c. are correct

Question number: 220

» Force and Pressure » Non-Contact Forces » Magnetic Force

MCQ▾

Question

Force of interaction which exists between two magnetic poles is called as:

Choices

Choice (4) Response

a.

Pull

b.

Electrostatic force

c.

Magnetic force

d.

Push

Question number: 221

» Reaching the Age of Adolescence » Role of Hormones in Initiating Reproductive Function » Reproductive Phase of Life in Humans

MCQ▾

Question

Menarche is:

Choices

Choice (4) Response

a.

The first menstrual flow

b.

Bleeding in women

c.

Stoppage of menstruation

d.

None of the above

Question number: 222

» Reproduction in Animals » Reproduction » Young Ones to Adults

MCQ▾

Question

The drastic change that takes place during the development of larva into adult is called as:

Choices

Choice (4) Response

a.

Cocoon

b.

Reproduction

c.

Metamorphosis

d.

Tadpole Larva

Question number: 223

» Reproduction in Animals » Reproduction » Sexual Reproduction

MCQ▾

Question

Reproduction resulting from the fusion of male and female gametes is called as:

Choices

Choice (4) Response

a.

Binary fission

b.

Asexual reproduction

c.

Budding

d.

Sexual reproduction

Question number: 224

» Force and Pressure » Non-Contact Forces » Electrostatic Force

MCQ▾

Question

Force between two charges is called:

Choices

Choice (4) Response

a.

Electrostatic force

b.

Muscular force

c.

Gravitation

d.

Thrust

Question number: 225

» Reaching the Age of Adolescence » Role of Hormones in Initiating Reproductive Function » How Is the Sex of the Baby Determined?

MCQ▾

Question

Sex of the body is determined with the:

Choices

Choice (4) Response

a.

Ova

b.

Sperms

c.

Sex chromosomes

d.

Hormones

Question number: 226

» Force and Pressure » Force » Identifying Actions as Push or Pull

MCQ▾

Question

Drawing a bucket of water from a well is:

Choices

Choice (4) Response

a.

Lifting

b.

Pushing

c.

Pulling

d.

Both a. and c. are correct

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