Answer:Plant material, lignite, sub-bituminous, bituminous, and anthracite
Explanation: Decomposing plant material over time and under pressure forma lignite which is a very dirty type of coal. As time and pressure increase, more energy is released and the trend points that there are less pollutants when it is burned!
Because those can leak and cause cancer
Answer:
B
Explanation:
ALL CELLS USE CELLULAR RESPIRATION
The unit of measurement for weight is that of force, which in the International System of Units (SI) is the newton. For example, an object with a mass of one kilogram has a weight of about 9.8 newtons on the surface of the Earth, and about one-sixth as much on the Moon.