Types of Water on earth

Which of the following water reserves is salty?

• A Rivers

• B. Groundwater

• C. Glaciers

• D. Oceans

Which of these characteristics belong to potable water?

• A. It is suitable for drinking

• B. It has microorganisms.

• C. It comes from salt water

• D. It is available to everyone.

Which of the following organisms belongs to the photic zone?

• A. Urchin

• B. Clam

• C. Blue whale

• D. Starfish

Which of the following options is correct when considering the depth of masses of water?

• A. At less depth there is higher pressure.

• B. At greater depth there is less luminosity

• C. At greater depth, there is lower pressure.

• D. At lower depths, there are higher temperatures.

Which of the following situations does not contaminate water?

• A. Pesticides that enter in the waters.

• B. The soapy water that comes out of the washing machine.

• C. The products of a paint factory that discharge into a river.

• D. The stones that come off the shore of a river and fall in the water.

Which of the following statements correspond to the Humboldt Current?

• A. It is a warm current.

• B. It moves from north to south.

• C. It goes through Chile, Peru, and Ecuador.

• D. It is related to the decrease of fishing activities

Wich is the biggest fresh water reserve on the planet

• lake

• rivers

• lagoons

• glaciers and polar ice caps