1. The ecosystem involves the living organisms that interact with each other and the surrounding environment.
2. Famine causes high death rates.
3. Heart stroke is the most serious type of heat-related illnesses.
4. A law makes writes and passes laws.
5. Oil spill causes marine pollution.
6. If people use public transport more often, carbon footprint can be reduced.
7. Deforestation is one of the biggest environmental threats to the ecological balance in the world.
8. The authorities need to stop being irresponsible and start taking action to solve the problem.
9. Heavy industry involves petroleum refining, steel and iron manufacturing, motor vehicle and heavy machinery manufacture.
10. She hates tasting artificial food coloring in desserts.
11. Reducing energy use in your home saves you money.
12. Forest fire kills wildlife animals.
13. Flood and drought are two major causes of famine.
14. Lacking of water can lead to deadly diarrheal diseases.
