Which type of soil has the greatest bits of rocks?

• Humus

• Clay

• Sand

• Silt

This picture shows what type of pollution

• Air pollution

• Water pollution

• Land pollution

• Noise pollution

The best type of soil for growing plants?

• Humus

• loam

• sand

• compost

Which kind of water is found in the river?

• fresh water

• dirty water

• salt water

rains ,hails and snow are ............

• precipitation

• evaporation

• condensation

The Earth rotates around its axis every ......

• 1 year

• 24 hours

• 356 days

A tool that used to know the wind direction is ..........

• rain gauge

• thermometer

• wind vane

• wind meter

The change of state from liquid to gas is...........

• evaporation

• condensation

• precipitation

• transpiration

This picture is example of .........................

• Recycling

• Reducing

• Reusing

• Pollution

The type of soil that hold water for the longest time is ......

• Sand

• silt

• clay

• Humus