2. B) electrical chemical thermal mechanical
3. B) light, sound, and heat
4. A) light energy from the sun
The mixture of rock particle sand humus is called the soil.
If soil contains greater proportion of big particles it is called sandy soil. If the proportion of fine particles is relatively higher, then it is called clayey soil. If the amount of large and fine particles is about the same, then the soil is called loamy.
Calculate the Mr of aspirin, next workout the percentage of H/aspirin