Marine Life

Animal and plant life found in the ocean can be affected by three MAIN factors. Which are them?

• Sunlight, temperature and pressure.

• Ocean currents, Chemical Levels, Pollution and Bioaccumulation.

The surface layer is the place where most fish and plants in the ocean live. This is because:

• The sun can cover the surface layer and this is necessary for organisms to survive.

• They like to live in that zone of the ocean.

• In this zone the competition for food and survive is less than in the deepest zones of the ocean.

We can divide the ocean in three layers, according to the amount of sunlight they receive. Which layer goes down to around 90 meters and receives most of the sunlight?

• The first layer or surface layer.

• The second layer.

• The third layer.

We can divide the ocean in three layers, according to the amount of sunlight they receive. Which layer receives some of the sunlight?

• First layer or surface layer.

• Second layer.

• Third layer.

We can divide the ocean in three layers, according to the amount of sunlight they receive. Which layer receives no sunlight?

• First layer or surface layer.

• Second layer.

• Third layer.

The pressure in the ocean varies according to the depth in the ocean. So the deeper you go in the ocean, the ________ pressure the water has on you.

• Less

• Same

• More

The circumstances that can change the temperature in the ocean, are:

• The place and the time of the year

• The depth of the water

• The colour of the water

• The name of the ocean

TRUE OR FALSE.

Close to the Equator, the surface temperature is cold.

• TRUE

• FALSE

TRUE OR FALSE.

At the North and South poles, water can be so cold that it freezes.

• TRUE

• FALSE