What is the nickname given to planet Earth?
The blue planet.
The blue giant.
Most of the Eartth's water is:
saltwater.
freshwater.
Saltwater is salty because:
the temperature of water.
of minerals that have been dissolved over millions of years.
Examples of saltwater sources are:
rivers, ponds and lakes.
oceans and seas.
This type of water is essential for all living things:
saltwater.
freshwater.
Freshwater is divided in:
frozen and liquid water.
frozen, ground, and surface water.
An example of ____ _____________ are glaciers.
Frozen freshwater.
Global warming.
An example of groundwater is:
a pond.
an aquifer.
Most of Earth’s freshwater is in rivers and lakes.
False.
True.
Most of Earth's freshwater is frozen.
False.
True.
Humans can negatively affect water resources.
False.
True.
When a harmful substance can harm and contaminate the environment:
pollution.
conservation.
This animal has been a victim of:
oil spills.
algal bloom.
This habitat has been a victim of:
oil spills.
algal bloom.
Using resources wisely to avoid pollution and excess use:
pollution.
conservation.
Reciclying water is simple and can be easily done at home.
False.
True.
