561. Acid rain is mainly caused by emissions of _ in the atmosphere.
A) Sulphur Dioxide
(B) Nitrogen Oxide
(C) Carbon Dioxide
(D) Sulphur Dioxide and Nitrogen Oxide
562. The theory of the Expanding Universe was first propounded by_______?
A) Newton
B) Einstein
C) Galileo
D) Hubble
563. How many bones are there in an adult human being?
A) 260
B) 210
C) 206
D) 300
564. Which statement about sound is true?
A) Sound can’t travel through glass
B) Sound can’t travel through a vacuum
C) Sound can’t travel through water
D) None of these
565. One of the following is a water-soluble vitamin?
A) Vitamin D
B) Vitamin A
C) Vitamin K
D) None
566. Which of the following glands secretes tears?
A) Pituitary
B) Lachrymal
C) Thyroid
D) Pancreas
567. Which of the following elements is not present abundantly in the earth’s crust?
A) Radium
B) Silicon
C) Aluminum
D) Carbon
568. Adult human brain is about____% of the total body weight.
A) 3%
B) 2%
C) 7%
D) 8%
569. Which Planet is Called Earth’s Sister?
A) Venus
B) Mercury
C) Mars
D) Neptune
570. Blood does not coagulate inside the body due to the presence of______?
A) Fibrin
B) Hemoglobin
C) Heparin
D) Plasma
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