concepts 3.2 and 4.1

The area of land where all water flows in one direction to a common location as a ocean called......................

• tributary

• estuary

• wetland

• watershed

Gravity depends on the............ of the body

• Speed

• Mass

• Length

• Age

Building a trash damp on windy days can pollute water ....................

• X

Recycling of wastewater means removing waste materials from it ................

• X

Skydiver opens his parachute during landing to increase the speed of falling...................

• X

There is no gravity between earth and the moon...............

• X

.................................it's means using resources in a way that does not negatively affect the future supply of these resources

• sustainability

• preservation

• availability

• pollution

It's a pull or push that is applied to an object..................

the amount of water which is found in seas and oceans is less than the amount of water which is found in rivers .....................

• X

............ are formed when water collects in low-lying areas.

• Seas

• Oceans

• Lakes

• Rivers