1- they can be used as domestic fuel for cooking instead of kerosene or firewood that contribute to pollution
2-they can also used to generate electricity in rural areas as these areas has not enough resources of electricity
-3x + 3(2x - 6) = 6
-3x +6x - 18 = 6
3x - 18 = 6
3x = 6 + 18
3x = 24
x = 8
hope this helped, blessing! :)
I mean each Animal has a purpose in order to keep the food chain in line, for example sharks if they went extinct there would be more seals and more fish and less of this and that. Each animal plays a certain part on earth in order to keep everything normal.
It would takes around 175 hours to walk 700 miles.
