NSO Level 1- Science Olympiad (SOF) Class 9: Questions 289 - 292 of 1123

Access detailed explanations (illustrated with images and videos) to 1123 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

Question number: 289

» Biology » Natural Resources

Edit
MCQ▾

Question

Which of the following statements are true about the green house effect?

Choices

Choice (4) Response

a.

Average temperatures increase world-wide due to green house effect

b.

Carbon monoxide is one of the green gases

c.

It increases the percentage of gases that prevent the escape of heat

d.

Water vapour is one of the main greenhouse gases

Question number: 290

» Chemistry » Matter

Edit
MCQ▾

Question

Take two glasses. Fill the first glass with cold water and the second with hot water. Put one teaspoon full sugar in each glass and stir well. What will be the observation?

Choices

Choice (4) Response

a.

Sugar dissolves faster in the second glass

b.

Sugar does not dissolve in both the glasses

c.

Sugar dissolves faster in the first glass (picture)

d.

Sugar dissolves simultaneously in both the glasses

Question number: 291

» Chemistry » Structure of the Atom

Edit
MCQ▾

Question

Identify the particle from the given clue

1. Is negatively charged.

2. Present outside the nucleus of an atom.

3. Has negligible mass.

Choices

Choice (4) Response

a.

Proton

b.

Electron

c.

Neutron

d.

All of the above

Question number: 292

» Physics » Motion

Edit
MCQ▾

Question

Here are some points of difference between speed and velocity. All the points are not true. Find out the in false ones

Table of the difference between speed and velocity

Table of the difference between speed and velocity

NO.

Speed

Velocity

1.

Distance covered per unit time

Displacement per unit time

2.

Reduces to zero when the object is at rest

Reduces to zero when comes back to the starting point

3.

Changes continuously in a uniform circular motion

Remains the same in a uniform circular motion

4.

Is a scalar quantity

Is a vector quantity

Choices

Choice (4) Response

a.

Point 3

b.

Point 2

c.

Point 4

d.

Point 1

Developed by: