What is the main application of nanotechnology? MCQ with Answer and Explanation

What is the main application of nanotechnology?
A. Weather control
B. Space rockets
C. Materials at nanoscale
D. Large scale construction
Answer: Option C
Solution (By JKSSB Mock Tests)
Nanotechnology manipulates matter at atomic scale.

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Question #1
Which of the following is a GM crop in India?
A. Wheat
B. Rice
C. Bt Cotton
D. Sugarcane

Correct Answer: Option C


Explanation:
Bt Cotton is the only commercially approved GM crop in India.

Question #2
The first test tube baby in India was born in:
A. 1978
B. 1986
C. 1970
D. 1990

Correct Answer: Option B


Explanation:
Harsha was born in 1986 through IVF.

Question #3
Which launch vehicle is used for Chandrayaan missions?
A. PSLV
B. GSLV
C. Both B and C
D. LVM3

Correct Answer: Option C


Explanation:
Different launch vehicles were used for Chandrayaan series.