Use the suggested words/ phrases to make a complete sentence

Use the suggested words/phrases to make a complete sentence
1. growing/population/come/cost/greenhouse/gases/climate change

2. renewable/energy/sources/be/great/way/combat/carbon/emissions

3. lack/biodiversity/put/food/chain/water/sources/other/resources/risk

4. education/protection/be/keys/combat/biodiversity loss

5. protect/remaining/forests/human/simply/stop/cut/down trees