Which of the following is not a disadvantages of wind power?

A. its supply is sporadic

B. its source is the wind

C. it is very expensive

D. the supply is uncertain

E. the amount of power produced is small

Which of the following is not an effect of badly arranged farm?

A. efficient management

B. time wastages

C. expensive labour

D. low output

E. low profit

Which of the following should be checked daily before using a tractor?

A. engine oil

B. spark plug

C. distributor

D. air cleaner

E. battery

The botanical name of giant star grass is

A. andropogon tectorus

B. pennisetum purpureum

C. panicum maximum

D. cynodon plectostachyum

E. chloris gayana

Cassava mosaic virus can be controlled by

A. spraying of fungicides

B. inoculation of the plant

C. spraying with insecticides

D. treatment of stem cuttings

E. growing resistant varieties

Which of the following crops does not require nursery preparation?

A. rice

B. tobacco

C. tomato

D. okra

E. pepper

To which of the following crops does the term ginning apply?

A. oil palm

B. cocoa

C. groundnut

D. cotton

E. coconut

The symptoms of coffee leaf rust are

A. leaf spots, loss of vigour and death of the leaves

B. wilting and death of plant

C. damping off and etiolation

D. leaf spots and damping off

E. etiolation and death of plant

Breeding in self-pollination crops can be regarded as

A. line breeding

B. cross-breeding

C. inbreeding

D. hybridization

E. back-crossing

An effective control method of the citrus moth is

A. hand-picking of the moth

B. spraying with fungicide

C. use of predators

D. delayed planting

E. timely harvesting of ripe fruits