Ruby is an oxide of__________?
Ruby is an oxide of__________?
A. silver
B. gold
C. platinum
D. aluminium oxide
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Lunar eclipse occurs on__________?
Lunar eclipse occurs on__________?A. New Moon
B. Full Moon
C. Half Moon
D. Quarter MoonFounder of modern astronomy was _________________?
Founder of modern astronomy was _________________?
A. Archimedes
B. William Gilbert
C. Nicolas Copernicus
D. Michael Faraday
E. None of theseWhich of the following is a ferromagnetic material ?
Which of the following is a ferromagnetic material ?A. Tungsten
B. Aluminium
C. Copper
D. NickelWhy normal rain is slightly acidic?
Why normal rain is slightly acidic?A. due to presence of dust in air
B. carbon dioxide and water in clouds react to form carbonic acid
C. Ozone depletion
D. All of theseThe three elements needed for healthy growth of plants are __________?
The three elements needed for healthy growth of plants are __________?A. N, P, K
B. N, C, P
C. N, K,
D. N, S, P
NPK stands for “nitrogen, phosphorus, and potassium,”Which of the following is not a Fat-soluble vitamin?
Which of the following is not a Fat-soluble vitamin?
A. Vitamin B5
B. Vitamin B6
C. Vitamin B3
D. Vitamin B2