Resources is wealth so human race all-ways(every ways) look for the easy way to get money/wealth/resources .by some intellectual people leads(give) some tech(technology)inc to extract the resources with out spending much 

1 4 1
Technology helps in development of resources by ever evolving.So we can get more materials for the resource's development,so surely the resources will develop.
1 3 1
Its so simple-read the first chapter of class 8 geography book and you will get the answer.
ok thank u
ur welcome everyone