KSS_bioplastics

Bioplastics from wood pulp is __

• Starch based

• Protein based

• Cellulose based

• Fat based

The plastic was invented by Alexander Parkesine which was derived from

• Petroleum

• Whale oil

• Starch

• Cellulose

Plastic made from bio-ethanol is ____

• Bio - degradable

• Non - biodegradable

• Renewable

• Non renewable

Currently the production capabilities of bio-degradable plastics are marginally _ than non biodegradable plastics

• More

• Less

Environmental impacts of conventional bio-plastics are

• Much higher CO2 emissions than fossil fuel based plastics

• More water and land requirement

• More toxic than fossil fuel based plastics

• Soil and water pollution

Which of the followings are the advantages of seaweed based bio-degradable plastics

• Compatible with existing machinery

• Non toxic

• Cheaper than conventional plastics

• Environment friendly

Which of the following are the disadvantages of commercial seaweed farming

• Destroys habitats of marine animals

• Can change underwater ecosystem

• Increases acidification in ocean

• None of these