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General Science

General Science - Important Points


1.

Which of the following is NOT an element?

A. Oxygen

B. Hydrogen

C. Carbon dioxide

D. Nitrogen

Discuss Work Space

Answer: option c

Explanation:

Carbon dioxide is a compound made up of two elements, carbon and oxygen. An element is a substance that cannot be broken down into simpler substances by chemical means.


2. Which of the following is a characteristic of a solid?

A. It has a fixed shape

B. It has no definite volume

C. It can flow easily

D. It is compressible

Discuss Work Space

Answer: option a

Explanation:

A solid has a fixed shape because its particles are closely packed together and cannot move freely. It also has a definite volume, cannot flow easily, and is generally not compressible.

3. What is the main function of the kidneys?

A. To regulate blood sugar levels

B. To produce insulin

C. To filter waste products from the blood

D. To transport oxygen to the cells

Discuss Work Space

Answer: option c

Explanation:

The kidneys are responsible for filtering waste products and excess fluids from the blood, which are then excreted as urine.

4. Which of the following is NOT a type of electromagnetic radiation?

A. X-rays

B. Sound waves

C. Gamma rays

D. Radio waves

Discuss Work Space

Answer: option b

Explanation:

Sound waves are a type of mechanical wave, not electromagnetic radiation. Electromagnetic radiation includes X-rays, gamma rays, radio waves, and many others.

5. Which of the following is the smallest unit of life?

A. Cell

B. Molecule

C. Atom

D. Organ

Discuss Work Space

Answer: option a

Explanation:

Cells are the basic unit of life and are capable of carrying out all of the processes necessary for life.


General Science Questions and Answers FAQ

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