Question

D. Give reasons for each of the following.
​

Answer 1

$\Large{\boxed{\red{\textbf{Brainliest\:Please}}}}$

⚘ Plastic items are not decomposed by microorganisms ⚘

The reason is that the polymers in these plastics have chemical bonds that are not common in nature, so microbes have never been exposed to them and do not have the enzymes or metabolic pathways to break down these polymers.

⚘ Thermoplastics can be remolded by heating ⚘

They melt just like other materials. Contrarily thermosets also melt at very low temperatures but their molecular structure is altered during consolidation by crosslinking into a rigid network structure.

⚘ Melamine is used in making kitchen tiles ⚘

Melamine is a thermosetting plastic. i.e , once cooled and hardened , these plastics retain their shapes and cannot return to their original form. Melamine is hard and durable in nature.It is a versatile material.It resists fire and can tolerate heat better than other plastics.It is also used for making floor tiles.

⚘ Cotton is blended with polyester ⚘

Poly cotton — sometimes known as polycotton or poly-cotton — is a blend of natural cotton and synthetic polyester. The blend mixes cotton fibers with artificially made polyester fibers. Usually, the mix has a ratio of 65% cotton and 35% polyester.

⚘ Food items should not be stored in recycled plastic containers or bags ⚘

• Yes, of course, Plastic food container is harmful due to the release of the small chemical.

• One of the American Scientific says that when plastic is heated it leaches chemicals 55 times faster than normal So, never ever used plastic container for the food.

• Never reheat food in a plastic container.

$\large{\boxed{\red{\textbf{ Thanks\:For\:Ansking}}}}$