Science Review #2 - SA 2

The fish get oxygen from ....

• the air

• the soil

• dissolved oxygen in the water

• dissolved carbon dioxide in the water

Some fish has colourful body color to help them to ....

• get the food

• hide from predators

• breathing

• attract human

Below are some ways to make a substance dissolve well, EXCEPT ...

• stir it for many times

• use hot water

• make the size of the substance smaller

• use cold water

When the solution reach a point where no more solute can dissolve, it is called ..... stage.

• solution

• solute

• saturated

• solvent

......... happens if there are too many trees are cut to produce things such furnitures and tissues.

• reforestation

• deforestation

• conservation

• land slide

The introduction of harmful matter into the environment is known as .....

• polutant

• polution

• polute

• natural resource

The negative effect of haze polution is ....

• corrosion of buildings and statues

• melting of ice caprs

• climate change

• respiratory illnesses

The penguin has a ....... that helps it to move quickly in water.

• body fat

• feathers

• streamlined body

• short leg

The way an organism behaves to stay alive in its environment is known as ............ adaptation.

• behavioural

• structural

• natural

• anatomical

Saga seeds dispersed by ....

• animals

• splitting action

• wind

• water