Question

Which is not a type of moraine?
A. Ground moraine
B. Lateral moraine
C. Crater moraine
D. All are the types of moraine

Answer 1

Hint:
> It is a mass of sediments carried down by glaciers and finally deposited.
> When glaciers melt and flow, they erode rocks and land masses, just like a river.
> These can be classified into five major types.

Complete answer:
There are four major kinds (or “ranks”) of coal. Steps in the slow, natural process called “coalification,” are classified and described by rank, during which buried plant matter changes into a thicker, drier, more carbon-rich, and harder material.

Slightly different parameters are used in different countries but generally proceed in increasing order from lignite, to sub-bituminous, to bituminous, to anthracite coal. Different parameters are often tested to differentiate coal ranks.

Anthracite: The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as ”hard coal” which has a high percentage of fixed carbon and a low percentage of volatile matter.

Bituminous: Middle-rank coal between sub-bituminous and anthracite. It generally has a high heating value and is the most common type of coal used in generating electricity in the United States of America. Bituminous coal appears shiny and smooth when you first see it, but on looking closely you will be able to see the layers.

Sub-bituminous: It is black in colour with a dull appearance. Its heating value is higher than lignite.

Lignite: Also known as “brown coal”, is the lowest grade coal with the least amount of carbon.

The heating value (also known as energy value or calorific value) of a fuel is the amount of heat released during the combustion of a specified amount of it.

Therefore, the correct answer is C

Note:
> There are also some other less common types of moraines.
> Rogen moraines (also called Ribbed moraine). They are called Rogen moraine because they are seen in Lake Rogen of Sweden.
> Supraglacial moraines (till located on top of the glacier)
> Washboard moraines (also called Minor moraines), and
> Veiki moraines form irregular ponds and plateaus surrounded by banks and are commonly found in the Northern part of Sweden and some parts of Canada.