Human activities 
Since the day us humans were created technology has improved,how we think is improved and the things we can do/make today or even in the future is absolutely incredible. How ever  not all of this ''improvements'' are improvements, some of them are damaging the planet that we live in .So the question you have been waiting for, Are human activities good or bad ?? In my opinion Human activities are something good to have in our planet and I am going to prove and give examples why it is good.
   
First of all human activities have made all of our lives better in so many ways that now we don't even have to travel to see someone because we can just open the internet and contact the one we want to see or now if we want to travel we don't have to do it in a couple days or weeks we can just do it in a matter of hours.For example before people traveled with animals and that took days,weeks or months and now it has become so easy and we don't waste alot of time.

Second thing is we can improve all the bad things by not driving a alot of cars and another thing to do is recycling everything that we can.For example alot of countries have the problem of not recycling and we can all improve that if we just care a little bit,and by that we can make human activities all positive.

The last thing is that if we all think properly we would know that air pollution and all that stuff that are considered bad are not actually bad because if we didn't have the stuff that can kill is we'd have the problem of overpopulation and in my opinion that is alot worse then the air being polluted or something .For example if we didn't have these problems we would have overpopulation and I think it take us a couple hundred years to die and if that continued of course in my opinion it would be all world war again we would kill each other for survival and etc.

For conclusion Human activities are good and all of us are using it today and it is making our lives so much easier and if we just care a little bit like plant more trees,recycle the world would be just perfect.