Activity Books Understanding Water Activity Book | Page 50

We know that nature can move dirt and sediment. Nature
can normally, over time, take care of itself. However, we know
that things people do can pollute water. Nature can clean its
water by filtering it through different soils and by evaporation.
We can also do things to keep water clean.
“Land use activities” is a phrase that is used to group
man-made sources of pollution. Land use activities include any
activities that disturb soil. These activities can provide
pollutants that can be carried by runoff into rivers.
Study the “Land Use Activities” on the facing page, then circle any
of the six categories of land use activities you have seen.

Agriculture Construction
g
Forestry

Mining
Septic Systems
Urba