Answer:
Port is nothing but a place for docking, traffic and storage of boats. On the contrary, a harbor is a place for storing boats. Ports are a creation of man, whereas harbors are both natural or man made.
Explanation:
I would either answer sanitation(pollution) or corruption
Answer:
mountain systems and fresh water
Explanation:
mountain systems are a group of mountain ranges with similarity in form, structure, and alignment that have arisen from the same cause, usually an orogeny. Take the Himalayan mountains for example.
Fresh waters are natural occurring waters except seawater and brackish water. for example they have lake Baikal,the Yangtze river etc.
I belive that the answer is A
