J
alot
Fertilizer, crop rotation, water, and regular care all help conserve fertile soil.
The same that is essential to conserve all threatened wildlife - conservation of their habitat and prevention of direct persecution - all else is futile.
Yea. look at its colour. Done sugar will usually be yellow-ish. Well done sugar will be black.
Chemist have done a lot to help people conserve energy. They have given them other options to get it, and materials and devices to keep it from being leaked and ultimately needing to use more of.
get rid of your sugar
You can tell if sugar cookies are done baking by checking if the edges are slightly golden brown and the center is set.
Conserve
You can either add more sugar or boil off some of the water.
yes, I have done that several times and it is very nice!
Teach them how to compost their humanure; so they can conserve their drinking water and prevent contamination. rain harvesting can be done also.