Answer:
Theory can be formed.
Explanation:
Theory may be defined as the explanation of the natural world that can be tested by the scientific methods. Theories can be tested under the controlled experiments.
The scientific experiment has tested a drug and used in one group that getting the drug and other group that getting sugar pill. The group getting drug shows better result than other group, this can be formulated as theory.
Answer:
so that when there is contact between the players, they wont infect each other :)
Explanation:
You need to sometimes break ribs to pump blood in the heart by doing CPR (CC)
C. chemical digestion. sorry if I am wrong
