Question

Coal typically forms

1. in glaciers
2. in deserts
3. in volcanoes
4. on beaches
5. in swamps

Answer 1

Coal forms in swamps and is a black rock-like fossil fuel that originated from plant remains buried millions of years ago. The sulfur content in coal, a key factor in pollution, varies depending on the type of swamp it formed in. Coal is categorized into different types like anthracite and bituminous based on the carbon content and heat energy. The correct answer is option 5.

Step-by-step explanation:

Coal typically forms in swamps, not in glaciers, deserts, volcanoes, or beaches. The formation of coal dates back to 300 to 400 million years ago during the Carboniferous period. Coal is a black rock-like fossil fuel that was formed from the remains of trees, ferns, and other plants. These plants were originally deposited in swamps, and over millions of years, they were buried under water and dirt.

The sulfur content in coal can vary depending on the conditions under which it was formed. Coal deposits from freshwater swamps typically have very low sulfur content, making them less polluting when burned.

Different types of coal, such as anthracite, bituminous, subbituminous, and lignite, are ranked based on their carbon content and heat energy production.