Question

1. Rust of wheat is caused by-
A. Fungus B. Bacteria C. Virus D. Protozoa
2. The following are the names of some of the well known forces- A. Gravitational force B. Muscular force
C. Magnetic force D. Frictional force
3. Which of the following reproduces only inside a host cell- A. Virus B. Alga C. Protozoan D. Bacteria
4. When we press the bulb of a dropper, with nozzles kept under water, air in the dropper is seen to escape in the form of bubbles. If we then release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to-
A. Pressure of water in the container
B. Weight of the bulb
C. Gravity of the earth
D. Atmospheric pressure
5. A disease caused by a virus and spread by an insect is- A. Polio B. Dengue C. Rabies D. Mumps
6. The energy ‘used up’ in overcoming friction, gets converted mainly into-
A. Sound energy B. Heat energy C. Light energy D. Chemical energy
7. Coke and Coal Tar are obtained from-
A. Petroleum B. Coal C. Natural gas D. Diesel
8. Which of the following is a renewable source of energy? A. Tidal energy B. Coal C. Diesel D. Petrol
9. Four students were asked to arrange the frictional forces due to rolling, static and sliding friction in an increasing order. Their arrangements are listed below. The correct arrangement is-
A. Rolling, static, sliding B. Rolling, sliding, static
C. Static, sliding, rolling D. Static, rolling, sliding
10.The highest grade of coal is known as-
A. Lignite B. Bituminous C. Anthracite D. Peat

Answer 1

Answer:

fungus puccinia triticina