Formative Practice 9.6 – Science Form 1 Chapter 9


Question 1:
What are the effects of deforestation?

Answer:
Deforestation can cause lack of oxygen production and carbon dioxide content in the air to increase. This will cause global warming as carbon dioxide is a greenhouse gas that can trap the heat from the Sun. Lack of oxygen content will also reduce oxygen for respiration. Deforestation can also cause soil erosion.

Question 2:
Minerals mined from Earth are required for continuous economical development of a country. However, mineral supply is limited. Suggest ways to ensure the continuous supply of minerals.

Answer:
Recycle, use mineral materials wisely.

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