In order for fossils to form, special conditions must first be met such as being buried quickly as to prevent it from getting destroyed by weather and other animals, being completely isolated from oxygen, and have a hard part that is not composed of soft tissue. TRUE OR FALSE

EXPLAINTION.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

i don't understand

explanation:

i don't understand your question

answer; convade;