Hydroelectric power does not pollute the water, and is more beneficial for the environment compared to a handful of other energy sources. It runs non-stop and is relatively cheap. However, the dams are too expensive to build. They may also interfere with fish and other life under the sea, and alter the environment around the dam.
it dosent
Positives include the fact that it is an enormous reserve of renewable energy; negatives are that it can seriously impact an environment, and is not the most stable of sources.
believe it or not hydroelectric dams do affect the environment.
good
Both Good for keeping you warm; Bad for the environment
Cars are bad, because it's for our environment
it is not good for the environment it is bad, it contributes to global warming, smog, etc
the good effects are that you are saving the water for feature use the future. the bad effects are that you are allowing the plant to get the water that they need to they will die ease
It depends, if you are a hippy i guess it will be good if you hate the environment its probably bad
planes can sometimes be good but sometimes bad
i vote yes
no, it's bad for the enrironment.