The answers A. C. D. are all physical reactions
The answer is B. Digestion of food
When food is digested it is chemically broken down
Hope this help!
Mainly to make life easier.
if one layer changes than scientists don't need to change all of their data.
it also helps keep organized.
hope this helped
ebs02
:)
Answer:
D.->6N
Explanation:
This is because <-2 N + -> 8 N
= <-2 N + -> 2 N + -> 6 N
= 0 N + -> 6 N
= -> 6 N
