1. 9.1 Human Activities that Endanger an
Ecosystem
Human activities that threaten the ecosystem
1)An increase in demand for shelter,food,transport,and raw
materials due to the increasing world population brings about
negative effects on the ecosystem.
2) Conflicts arise between fulfilling human needs and the need
to protect the ecosystem.
3)Human Activities that Endanger the Ecosystem
i) Deforestion causes soil erosion,landslides,flash floods,loss of
biodiversity,global warming ,greenhouse effect, and climatic
changes.
ii)Farming causes pollution and eutrophication.
iii)Burning of fossil fuels causes greenhouse effect, global
warming and pollution.
iv)Industrialisation causes pollution.

2. The impact of human activities on the
ecosystem
a)deforestation
1)The extensive removal of trees from forest is known as
deforestation.
2)Vast areas of forests are cleared for agriculture,development
and logging activities.
3) The importance of forest involve: