NSO Level 1- Science Olympiad (SOF) Class 9: Questions 379 - 384 of 1128

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Question 379

Question

MCQ▾

A disease that spreads by the bite of an infected dog is called as

Choices

Choice (4)Response

a.

Jaundice

b.

Measles

c.

Depression

d.

Rabies

Question 380

Question

MCQ▾

Syphilis is caused due to

Choices

Choice (4)Response

a.

Sexual contact

b.

Hug

c.

Handshake

d.

Drinking contaminated water

Question 381

Question

MCQ▾

The second stage for the practices involved in farming is

Choices

Choice (4)Response

a.

The choice of seeds for planting

b.

The nurturing of the crop plants

c.

The protection of the growing and harvested crops from loss

d.

All of the above

Question 382

Question

MCQ▾

Simplify .

Choices

Choice (4)Response

a.

1

b.

c.

d.

0

Question 383

Question

MCQ▾

Cell wall of which one of these is not made up of cellulose?

Choices

Choice (4)Response

a.

Mango Tree

b.

Bacteria

c.

Hydrilla

d.

Cactus

Question 384

Question

MCQ▾

Shreeja wants to write the chemical formula of magnesium chloride. Which of the following rules has to be kept in mind while writing it.

Choices

Choice (4)Response

a.

The valencies or charges on the ion must balance.

b.

When a compound consists of a metal and a non-metal, the name of the metal should come first.

c.

Write the symbol of cation first and then the symbol of anion. Criss-cross the charges to get the formula.

d.

All a., b. and c. are correct

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