<span>The
causes of environmental problems in Sub-Saharan Africa are deforestation,
development, and increased population. As the country is aiming for development,
its environmental status is impaired. Increasing population resulted to
migration to higher urban or rural areas, and continuous land cultivation which
eventually caused deforestation and dilapidation.</span>
I believe the correct answer would be tourism and agriculture. The economy of Central America is primarily based on tourism and agriculture. Hope this answers the question. Have a nice day. Feel free to ask more questions. Thank you.
Answer:
Universe: all of space and time (collectively referred to as spacetime) and their contents.
Solar System: gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly.
Galaxy: a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
Cluster: a group of stars formed closely
Constellation: a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.
The correct answer is<span> D.Cyclic movements are short trips and involve a return to the home base, while migration is permanent.
Cyclic movement is what birds do during winter after which they go home. Migration is when animals move completely to a new place and enter a new habitat.</span>