Sun rises in the east and sets in the west due to the:
- (A)Â Shape of earth
- (B)Â Rotation of earth around the sun
- (C)Â Rotation of earth on its axis
- (D)Â Movement of the sun
- (C)Â Rotation of earth on its axis
What are cyclones?
- (A)Â Sudden heavy floods
- (B)Â No rain for a long period
- (C)Â Heavy showers
- (D)Â Violent wind and rain
- (D)Â Violent wind and rain
From ecological point of view human beings are taken as:
- (A)Â Decomposer
- (B)Â Consumers
- (C)Â Producers
- (D)Â All of these
- (B)Â Consumers
The major cause of land pollution is:
- (A)Â Pesticides
- (B)Â Chemical fertilizers
- (C)Â Insecticides
- (D)Â All of these
- (D)Â All of these
The sharp-bitter taste of unripe fruits is due to high concentration of:
- (A)Â Phenolic compounds
- (B)Â Volatile compounds
- (C)Â Organic acids
- (D)Â Starch
- (C)Â 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)Â Some bacteria left unkilled
- (B)Â Production of more bacteria
- (C)Â Bacteria becoming sensitive to antibiotics
- (D)Â Bacteria becoming resistant to antibiotics
- (D)Â Bacteria becoming resistant to antibiotics
Flesh eaters are called:
- (A)Â Omnivores
- (B)Â Carnivores
- (C)Â Herbivores
- (D)Â Scavengers
- (B)Â Carnivores
Chromosomes are made up of:
- (A)Â DNA only
- (B)Â DNA & RNA
- (C)Â Proteins only
- (D)Â DNA, RNA & Proteins
- (D)Â DNA, RNA & Proteins
Plants can be made disease resistant by:
- (A)Â Heat Treatment
- (B)Â Hormone treatment
- (C)Â Colchicine treatment
- (D)Â Breeding with their wild relatives
- (D)Â Breeding with their wild relatives
Important ingredient used in Vicks vapor rub is obtained from the plant:
- (A)Â Cinnamomum Camphora
- (B)Â Cinamomum zelamicum
- (C)Â Curaima longa
- (D)Â All of these
- (A)Â Cinnamomum Camphora