Answer:
I think a is the right answer
Hi! Is this your first question?
Welcome!
Anyways,
Stains are made of different types of molecules, a range of enzymes are needed to break them down. ... Proteases break down proteins, so are good for blood, egg, gravy, and other protein stains. Amylases break down starches, and lipases break down fats and grease.Nov 15, 2007
Solar energy is a form of renewable energy, namely energy that cannot be depleted. Other forms of energy like carbon based sources of energy cannot be renewed in a reasonable span after being used (forests take time to grow and oil is created in geological timescales). Joe is trying to deal with the phenomenon of resource depletion. The way he goes about it is making a renewable source of energy more efficient and usable.
It is true that frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen.
They can all travel through empty space
