click below
click below
Normal Size Small Size show me how
Biology Booklet 10
Human impact on the environment
Question | Answer |
---|---|
What is population explosion? | A dramatic increase in the growth of a population |
Name 4 factors that have caused the world population explosion? | Better healthcare Not many natural predators Perfect world climate Diet aand nutrition |
Name 3 problems the world population create? | Less food to go around More carbon dioxide being produced More trees needing to be cut down to make space for humans |
List 3 techniques used in intensive farming? | Competing plants are removed herbivorous animals are removed Animals are kept inside |
What are herbicides used for? | They are used to kill any unwanted plants |
What effect do herbicides have on biodiversity? | They reduce the biodiversity |
What are the two effects on a plant using pesticides? | The plants are less damaged They photosynthesise more |
What are the disadvantages of pesticides? | They will kill animals that eat the crops When it rains the pesticide runs into rivers/lakes |
What does battery farming mean? | This is when animals are kept inside |
Give an example of an animal that is battery farmed | Chicken |