Which of the following is affected by rickets in the human body?
		A. Bones
B. Tissues
C. Muscles
D. Blood
		A. Bones
B. Tissues
C. Muscles
D. Blood
A. 0.10
B. 0.20
C. 0.30
D. 0.41
		A. light waves only
B. sound waves only
C. Both Light waves and sound ways
D. None of these
An apparent change in the frequency of waves, as of sound or light, occurring when the source and observer are in motion relative to each other, with the frequency increasing when the source and observer approach each other and decreasing when they move apart.
Hence, it is applicable for both sound and light waves.
The production of rubber tree is better adopted to areas where the climate is_________
A. Warm and humid
B. Warm and dry
C. Cool and moist
D. cool and dry
A. Rice
B. Meat
C. Potato
D. Milk
The speed of sound in air at sea level is approximately____________?
		A. 300 meter per second
B. 320 meter per second
C. 340 meters per second
D. 370 meter per second
A. Sulfur Dioxide and Potassium Nitrate
B. Sulfur and Charcoal
C. Nitrogen Oxide and Potassium Nitrate
D. Sulfur Dioxide and Nitrogen Oxide