4.When they passed by the exhibit area of various water jugs, Rhys observed that most of the water jugs are plastics. He asked his mom, "Why are water jugs made of plastics?” What is the best reason & mother can answer te this question?
A. Plastics are colorful which are good for the eyes.
B. Plastics are prone to rust which are bad for our health.
C. Plastics are strong and light which make them durable for water jugs.
D. Plastics are conductors of heat and can somehow maintain the temperature in the water jug.
5. When father checked the fabei of a gaifon of kerosene, there was a warning symbol. Father said, “It is considered a harmful material". What does this sign imply?
A. It is highly toxic.
B. It will make you sick.
C. It may irritate your skin.
D. It ignites and catches fire easily.
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C. plastics are strong and light wich make them durable for water jug