Revision- Aquatic habitat ,

How do mangroves help protect humans from hurricanes and tsunanis?

• They release salt into the air, which neutralizes these events.

• The birds, animals, and fish in the mangroves get killed instead of the humans.

• They absorb up to 90% of the impact of these events.

• This statement is false. Mangroves help cause hurricanes and tsunamis.

Mangroves provide a _________________________for small fish before they swim out to the deeper ocean.

• Safe breeding ground
• Fresh water system

Mohan went to a picnic spot. There was a little lake surrounded by trees. He found a lot of people boating around in diesel boats. After a joy ride, when he sat down to relax on the bank of the lake, he observed a lot of dead fish. The MOST LIKELY reason for the dead fish is....

• The fish were old and therefore died

• Fish cannot live in places having many visitors

• Fish cannot live in polluted waters

• There was not enough water in the lake

What are the natural factors that affect aquatic habitats?

• Over exploitation & pollution

• Drought & flooding

I DONT HAVE GILLS

• SQUID

• OCTOPUS

• DOLPHIN

How are dolphins adapted to Aquatic habitat.

• They have lungs to breathe and they jump over the water to breathe.

• they have gills

• they have legs to swim

How does countershading help sharks?

The picture show the shapes of the leaves of some underwater plants. Which one of them gets very little damage due to flowing water?

This is a picture of a large deep lake. It shows the different layers of the lake. As you can see there are very few plants growing at the bottom of the lake What could be the reason for this be?

Have you ever looked closely at the body of the fish? What could be the use of the scales to the fish?