CP3(Chapter 5)

Question 1

• is the process whereby a dissolved sample is vaporised

Answer 1

VOLATILIZATION

Question 2

• the draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.

Answer 2

RUNOFF

Question 3

• Movement of insecticides in water through soil.

Answer 3

LEACHING

Question 4

-Movement of Insecticides into Plants and animals

Answer 4

ABSORPTION

Question 5

also known as the exoskeleton, is the outermost part of the insect body. It serves a variety of functions such as protection from desiccation, sensory perception of the environment, mechanical support and means of locomotion.

Answer 5

Cuticle

Question 6

This type of damage may appear on the tip, the margin, as spots on the leaf or the entire leaf surface may appear burned. The growing tip or bud may also be killed.

Answer 6

Burn

Question 7

Similar to burn and affecting plants in the same manner.

Answer 7

Necrosis (or death of the plant tissue)

Question 8

May appear as spots, tip yellowing, or as a general chlorosis of the entire leaf.

Answer 8

Chlorosis (a yellowing or bleaching effect)

Question 9

May appear as curling, crinkling, or cupping of the leaf.

Answer 9

Leaf distortion

Question 10

are very toxic to earthworms and some organophosphates have been shown to reduce earthworm populations (Edwards, 1987)

Answer 10

carbamate insecticides