I'm pretty sure it's D, I could be wrong but it seems like it's the most correct answer.
Answer: many things like grasshoppers, crickets, ants, etc.
Explanation:
Explanation:
Plants in forest are not supplied with fertilizer by human beings ,yet they get mineral and salt from the dead decaying body of plants and animal found in the forest .Animal die in forest get converted into humus by bacteria and other animals .Sources of energy is transferred from one life to other by different means in this way plants in forest get plant and mineral.
Not a physical change, It's a chemical change because you can't change the process back to its original state. If it was a physical change, you could change it back to its original state using the boiling, evaporating or melting process.
Answer:
installing a programmable thermostat to replace your old dial unit or sealing and insulating heating and cooling ducts
Explanation: