human Influences on ecosystems- key term Flashcards
1
Q
Define agricultural machinery
A
to use larger areas of land and improve efficiency
2
Q
Define Chemical Fertilisers
A
help crops grow better
3
Q
Define Insecticides
A
a type of pesticide that kills insects
4
Q
Define Herbicides
A
a type of pesticide that kills weeds
5
Q
Define selective breeding
A
to improve production by crop plants and livestock
6
Q
Define biodiversity
A
the number of different species that live in an area.
7
Q
Define sustainable resource
A
one which is produced as rapidly as it is removed from the environment so that it does not run out
