<em>Hi,</em>
<em>Which practice contributes the most to land pollution?</em>
O A disposal of industrial wastes and household garbage
The amount of money, effort and time it will take
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.
The answer should be C if not then it is D
