You should buy a bitcoin now because of nonstop increase of price of btc.
Yes sometimes decrease but you only need is wait for right timing before you buy and sell it in the good price

Money can't buy happiness or its depend on people how they make thier selves to be happy, some people don't have money but full of happiness in thier heart, some people have a lots of money and get whatever they want but doesn't happy. it is one example that money can't  replace happiness

Garbage can help economic growth by recycling. Like plastic metal paper etc.... and we can create a energy in garbage.
All we need is discipline  to ourselves.
Don't throw are trash in sea or river or canal or everywhere . We should know how to love our  mother nature.educate our child how to protect the earth in simple way that's for the next generation

Fair and wise .Understanding .Know what the priority .Good heart .Not corrupt .Smart.  Loving .honest. good listener to the opinion of other people.

Unemployment because of lack of opportunity and investor  to our country that giving a job to lot of people
But some people instead of find a job they going to join to rally unemployment is always there that's why you need to do something go find a job .

Online dating has have advantage and disadvantage it's up to you how handle the situation

  To eliminate the corruption is to eliminate the corrupt peole.Vote wisely. Don't sell your vote.  We can't eliminate them all but we can prevent the corruption for voting the rights person to government officials

Simple  follow the rules and be a good citizen.
Helping other people. Educate our children .

If I have a lot of money.  I will.  Because helping to other people are good and they really appreciate that.and that thing is a priceless ,

I can contribute to my city by doing right pay taxes helping to the other people educate my neighbor how to do things right. Be a law abiding citizen of my city,

If you mean is robot/machine vs human worker, i think robot will win. lot of companies started to invest or demand to robot/machine because machine make works faster in just a little time and easier  than human.
Thats why some people lost  source of income because of unemployment

The good effect /advantage of robot or machine  is to make it fast the jobs or works and multitask  make more works in just a little time,
And the disadvantage is unemployment for human, lot of people lost of source of income.

Working abroad is a lot of sacrifices  because you have to sacrifice your own happiness.like It's your precious time with family , friends or a wife, your life in your own country. You sacrifice all of that for the sake of your love ones, in order to give them a descent life.money.financial support.

For you to overcome depression, learn how to control your emotions and learn how to ignore those negative people who bring you down, think to those people who loves you no matter what. Dont mind the people around you, just be who you are do what makes you happy.

Money can't be able to buy all the happiness in the world, but it can be able to buy a portion of happiness for some people. For example, what makes a person happy anyways? For children, toys or candy makes them happy. For a teenager, video games or arcades make them happy. For an adult, it is to settle down or travel abroad. Money can only buy what can be physically bought. For each person, there are different things that can make them happy.

Common cause of poverty is Lack of education,Over population.
Diseases.Environmental problems.Low economy.Unable to find a job or an employment

for me the biggest problem in my country in past years our corruption in our government , criminals everywhere , drug addicts , but were now in duterte administration so most of it are already solved by our great president duterte , Many street are safe because all drug addicts , rapist are in jail and most of them are already dead ,

Actually it's limitless ,
no one can count the money  of the whole word  ,

I think is a yes a lot of oil companies scared about that,
And the value of oil decrease .
Many of  oil company is going down if the demand of electric cars go higher or stronger ,
Infact electric cars are more eco-friendly/environmental friendly that's why some of the city's or country tried to reach out or studying  this idea because it will affect  in the economy

When the right time to buy and sell bitcoin.
I think the best time to buy if the price is decrease and sell it when the price of your bitcoin increase.