Answer: more than 30,000
Explanation:
The U.S. Coast guard has protected the U.S. coastline for centuries. They provide maritime law enforcement, aid navigation, protect the marine environment and most relevantly, embark on search and rescue missions.
The year 2013 saw them respond to more than 30,000 search and rescue missions which enabled them to save over 7,000 lives.
Answer:
Scientists divide Earth's atmosphere into four main layers :
- troposphere
- the stratosphere
- the mesosphere
- the thermosphere
Explanation:
