NSO Level 1- Science Olympiad (SOF) Class 7: Questions 250 - 255 of 593

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Question number: 250

» Acids, Bases and Salts

Edit
MCQ▾

Question

When Ants bite it secrets ________ acid.

Image shows the ant

Image Shows the Ant

Image shows the ant

Choices

Choice (4) Response

a.

Acetic acid

b.

Lactic acid

c.

Ascorbic acid

d.

Formic acid

Question number: 251

» Fibre to Fabric

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match the column I with column II.

List-Ⅰ (Animal) List-Ⅱ (Type Of Wool)

(A)

Goat

(i)

Merino

(B)

Sheep

(ii)

Angora

(C)

Rabbit

(iii)

Cashmere

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)

a.

  • (i)
  • (ii)
  • (iii)

b.

  • (i)
  • (iii)
  • (ii)

c.

  • (iii)
  • (i)
  • (ii)

d.

All of the above

Question number: 252

» Nutrition in Plants and Animals

Edit
MCQ▾

Question

Which of the following is true about symbiotic relation?

Image showing the symbiotic relation

Image Showing the Symbiotic Relation

Image showing the symbiotic relation

Choices

Choice (4) Response

a.

One provides the food while other gets the shelter and protection.

b.

One organism feeds on to other by harming it.

c.

Both the organisms get benefits from this relation.

d.

Both a. and c. are correct

Question number: 253

» Heat

Edit
MCQ▾

Question

Which of the following colour absorbs the heat best?

Choices

Choice (4) Response

a.

Black

b.

White

c.

Orange.

d.

Blue

Question number: 254

» Acids, Bases and Salts

Edit
MCQ▾

Question

If a solution has pH of about 7, which of the following categories does fall in?

Image shows the pH scale

Image Shows the pH Scale

Image shows the pH scale

Choices

Choice (4) Response

a.

Base

b.

Acid

c.

Neutral

d.

Salt

Question number: 255

» Fibre to Fabric

Edit
MCQ▾

Question

The following factors determine the quality of which fibre?

  1. Thickness

  2. Strength

  3. Length

  4. Shine

  5. Colour

Choices

Choice (4) Response

a.

Silk

b.

Cotton

c.

Nylon

d.

Wool

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