Science 4th grade: Care for the environment

Which are the examples of human activities that are harmful to the environment? (Choose 3 correct answers)

• 
• 
• 
• 

These are the bad effect of the clearing of forests, except?

• building houses

• kills the plants

• destroys the habitats

• living things lose their sources of food

Some human activities that produce smoke, rubbish, and harmful gases and substances is called................

• Pollination

• Population

• Production

• Pollution

What are the bad effect of smoke and harmful gases for human? (Choose 2 correct answers)

• make human healthier

• cause breathing problems

• make humans sick

• make human wearing a medical mask

How is the condition of the beach there?

• good

• accepted

• dirty and smelly

• very good

Wastewater that flows into rivers and sea contains? (Choose 2 correct answers)

• bacteria

• clear water

• fresh water

• harmful substances

We can reduce by doing these: ,(Choose 2 correct answers)

• Buy all the thing that we want

• Buy only the things that we need

• Use more materials that pollute the environment

• Use less materials that pollute the environment

We can reuse by doing these.

(Choose 2 correct answers)

• Use a reusable bag when we go shopping

• Reuse things such as old clothes and books that are still in good condition

• Buy the things that we need

• Use less materials that pollute the environment

We can recycle by doing these. (Choose 2 correct answers)

• Plant a tree

• Throw the rubbish everywhere we want

• Sort rubbish by the type of materials and place them in recycling bin

• Use recycled products such as recycled paper

What do you call this action? It destroys the habitats of living things that live in the forests.

• Pollution

• Degradation

• Population

• Deforestation