Sun rises in the east and sets in the west due to the:
- (A) Shape of earth
- (B) Rotation of earth around the sun
- (C) Rotation of earth on its axis
- (D) Movement of the sun
- (C) Rotation of earth on its axis
What are cyclones?
- (A) Sudden heavy floods
- (B) No rain for a long period
- (C) Heavy showers
- (D) Violent wind and rain
- (D) Violent wind and rain
From ecological point of view human beings are taken as:
- (A) Decomposer
- (B) Consumers
- (C) Producers
- (D) All of these
- (B) Consumers
The major cause of land pollution is:
- (A) Pesticides
- (B) Chemical fertilizers
- (C) Insecticides
- (D) All of these
- (D) All of these
The sharp-bitter taste of unripe fruits is due to high concentration of:
- (A) Phenolic compounds
- (B) Volatile compounds
- (C) Organic acids
- (D) Starch
- (C) Organic acids
The use of antibiotic is a very effective way of killing disease causing bacteria. Sometime people don’t finish all of their pills. This can result in:
- (A) Some bacteria left unkilled
- (B) Production of more bacteria
- (C) Bacteria becoming sensitive to antibiotics
- (D) Bacteria becoming resistant to antibiotics
- (D) Bacteria becoming resistant to antibiotics
Flesh eaters are called:
- (A) Omnivores
- (B) Carnivores
- (C) Herbivores
- (D) Scavengers
- (B) Carnivores
Chromosomes are made up of:
- (A) DNA only
- (B) DNA & RNA
- (C) Proteins only
- (D) DNA, RNA & Proteins
- (D) DNA, RNA & Proteins
Plants can be made disease resistant by:
- (A) Heat Treatment
- (B) Hormone treatment
- (C) Colchicine treatment
- (D) Breeding with their wild relatives
- (D) Breeding with their wild relatives
Important ingredient used in Vicks vapor rub is obtained from the plant:
- (A) Cinnamomum Camphora
- (B) Cinamomum zelamicum
- (C) Curaima longa
- (D) All of these
- (A) Cinnamomum Camphora