Water

For the past few sceince classes we have been watching a video about water. When they say "every drop counts" it means that literally every drop counts. Since we are running out of water we need to be careful and save the water that we have and use only what we need and what we will use nad not waste or not over waste water. We can save our water by taking shorter showers, filling up the washing machine all the way with whatever is dirty not just what you want to wear the next day.

"its melting away, its wasting away, i need it, theres no doubt about it" refers to the glaciers and how they are melting away from what we call global warming. Since the Glaciers are melting away there will be less and less water that will melt and go into our rivers and lakes. which means that we wont have fresh drinking water. when they say its wasting away meaning that people arn't being very cautious with the water they have and they are over using it and that its just wasting away.

"its what we've got, it's all, thats it" means that water is irreplaceable and there is no way to replace it. there is also no other resource or material on earth that can be close to it. and what we have now is it there is no way to get it back after it is gone. It is a very valuable resource and if people dont get their act together we will surely run out of water and be left with nothing.