The macronutrients are carbohydrates protein and fat true or false

The answer is true.  

Macronutrients are a class of chemical compounds which humans consume in their nutrition (via food) in largest amounts. Those nutrients provide humans with the bulk of energy. Most foods contain a mixture of more than one macronutrient, but there is always one they contain most of.

Characteristic expected of mineral from lava at earth's surface

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.

It's either -limiting factors or -scarce resources but i'd go with my first answer since the food and water are abundant they really aren't scarce