Wait what????? How many light years!?
Whereas a change that causes change in chemical composition of a substance is known as chemical change. For example, A new substance is always formed in a chemical change. Thus, we can conclude that the definition a chemical change produces a new substance by breaking and forming new bonds, is correct.
I do not understand the question????
something that causes an organism to decay. It could have been eaten, or an air pocket formed as it was fossilizing or basically anything that obstructs the formation of a fossil.... you have to figure the rest out; )
The answer is d. the medical team looks as which kind of wbc's are present, when that is discovered, an appropriate antibiotic is perscribed.