Question

Task 7
1. How were rivers in the past time?
2. How are rivers today?
3. Why does the condition of rivers change?
4. Why does rubbish cause food?
5. What is the effect of throwing the industrial waste into the rivers? ​

Answer 1

Jawaban:

1. Rivers in the past time were typically cleaner and more natural, with fewer human alterations and pollutants.

2. Rivers today are often polluted with garbage, sewage, and industrial waste, and many have been altered or dammed for human uses such as irrigation or hydroelectric power.

3. The condition of rivers changes due to human activities such as pollution, deforestation, and development, as well as natural factors like drought and climate change.

4. Rubbish can cause pollution, which in turn can harm wildlife and disrupt ecosystems within rivers.

5. Throwing industrial waste into rivers can cause severe pollution and harm to wildlife, as many industrial materials contain toxic chemicals and heavy metals that can contaminate the water and sediment. This can have lasting effects on both the local and downstream ecosystems and can even impact human health.