A reptile with a four-chambered heart is:
- (A) Snake
- (B) Lizard
- (C) Crocodile
- (D) Tortoise
- (C) Crocodile
In general, the cancer in a human body is caused by changes to:
- (A) Virus
- (B) DNA
- (C) RNA
- (D) All of these
- (B) DNA
Where did Joseph Priestley discover oxygen?
- (A) America
- (B) Germany
- (C) England
- (D) Australia
- (C) England
In which food Lactic Acid Bacteria (LAB) is found?
- (A) Curd
- (B) Milk
- (C) Water
- (D) Juice
- (B) Milk
In mirrors the black surface is coated with a thin layer of:
- (A) Lithium
- (B) Mercury
- (C) Silver
- (D) Copper
- (C) Silver
ELISA test is prescribed for:
- (A) Polio
- (B) Cancer
- (C) AIDS
- (D) Typhoid
- (C) AIDS
In which of the following component of the body, lactic acid fermentation takes place?
- (A) Liver
- (B) Heart
- (C) Brain
- (D) Muscles
- (D) Muscles
In a year, light travels a distance of:
- (A) 9.4 × 109 km
- (B) 9.4 × 1012 km
- (C) 9.4 × 1015 km
- (D) 9.4 × 1018 km
- (B) 9.4 × 1012 km
How many toxic chemicals are there in a single puff of cigarette?
- (A) 3,000
- (B) 5,000
- (C) 6,000
- (D) 7,000
- (D) 7,000
Microphones convert sound energy into:
- (A) Microphone
- (B) Electrical energy
- (C) Optical signals
- (D) Heat energy
- (B) Electrical energy
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