15In spite of being inexpensive, flexible, and simple to manufacture, _______ they derive from nonrenewable sources like oil, and the majority do not decompose in landfills.15 Mark For Review15Which choice completes the text so that it conforms to the conventions of Standard English?A) there are two issues related to synthetic polymers: B) two issues are related to synthetic polymers: C) the two associated issues with synthetic polymers are that D) synthetic polymers have two associated issues:

A : Above all, they are cheaper and easier to process making them a viable alternative to metals.B : Polymers are essentially a long chains of hydrocarbon molecules.C : Today polymers as strong as metals have been developed.D : Metals are today being replaced by polymers in many applications.E : These have replaced the traditional chromium-plated metallic bumpers in cars.F : Many Indian Institutes of science and Technology run special programmes on polymer science.QUESTION 13bookmark_borderSelect the correct answerWhich of the following statementscan be the first statement of the paragraph?radio_button_uncheckedFradio_button_uncheckedAradio_button_uncheckedDradio_button_uncheckedEradio_button_uncheckedD

Which of the following statements about polymers is correct?

Comparing fossil feedstocks with biofeedstocks, and non-degradable with biodegradable polymers, discuss critically what the term "bioplastic" means and what is required in order to increase the sustainability of plastic use in the future.(max 200 words)

Which passage from the article best supports the belief that methods for eliminating the plastic waste already in landfills must be developed?A.Other businesses are also producing plastic substitutes we can all stomach.B.Petroleum-based plastic doesn't decompose, so this rubbish is a problem that's not going to melt away on its own.C.Polishing off your flatware might be fun, but these edible spoons aren't just a cool novelty.D.In contrast to the fossil fuels used to make most plastic, seaweed is a renewable resource.

1.To help answer the concern about environmental pollution, b _ _ _ _ _ _ _ _ _ _ have been developed from plant materials.2. D _ _ _ _ _ _ _ _ _ plastic bowls or is the cup are designed to be thrown away after you have used it once or a few times, so they are not very good for the environment.3. Plastic can be used in everyday plastic products, which highlights that it is a v _ _ _ _ _ _ _ _ material in our everyday activities.4. With the addition of p _ _ _ _ _ _ _ _ _ _ _, plastics become softer and more flexible and it can be used in many applications.5. A _ _ is the popular choice for electronic exteriors and medical equipment its primary advantage is that it guarantees a solid shape.6. P _ _ _ _ _ _ for plastic is organic compounds added to a polymer base to give a specific color to plastics.7. Plastics can be given additional characteristics such as fire r _ _ _ _ _ _ _ _ _ to allow them to be used in aircraft.8. Thermoset plastics are stronger than thermoplastics but can not be r _ _ _ _ _ _ _ and have to be disposed of in other ways.9. Polypropyle is a strong plastic and it can usually w _ _ _ _ _ _ _ _ high temperatures, so it has a wide range of applications.10. High-Density P _ _ _ _ _ _ _ _ _ _ _ products are very safe and are not known to transmit any chemicals into foods or drinks.