Answers
1a
2a
3b
4a
Let me know if you want explanations :)
C. Sap- appareently i have to use 20 characters so im just gonna keep typing lol
How the return of local wildlife in Namibia had improved the quality of the lives of the humans in the said area is through the increase of Tourism, which brought jobs for the locals. Mostly, these jobs are related to boosting the tourism and by taking care and promoting their area. The answer would be the last statement.
Energy. The other 90% is lost as heat. This is the second law of thermodynamics.