Britain's imperialist practices were often only great for Britain, not for the colonies, which was seen in the US, India, China, and many many other colonies which were on the verge of disaster because of imperialist ruling.
The correct answer is free verse (choice C), in which you do not follow any particular rules about rhythm or rhyme. On the other hand, iambic, fixed, and syllable verses follow a certain rhythm, to make the poem look more uniform. Free verse is not restricted in such a way, and allows author to write as the wish.
The two worst method of waste management are disposal to landfill and thermal treatment.
Disposal to landfill adds up to the pollution in a certain place where the landfill is located. It can also cause some diseases from the landfill.
<span>Thermal treatment or incineration is a process that involves combustion of organic substances converting the waste into ash, heat, and flue gas</span>