A, tourists do not go to work or visit farms or work in the factories , they go to visit its world-famous cities .
Answer:
Gene mutation
Explanation:
The difference in the coloration of the whale is due to mutation. Mutation is an alteration of the gene of an organism which can result in a change in phenotypic qualities. Mutation can be caused by exposure to mutagens such as industrial chemicals.
Answer:
I believe the answer is B.
Answer:
Because China is suffering from overpopulation.
Explanation:
