Answer:
A lot
Explanation:
Many mutations are non harmful, but rarely some can be harmful.
<span>C, The correct answer is Surface, surface waves produced by an earthquake because the waves are mechanical and expand by several means with higher altitudes and waves, and is part of the three main types of primary and secondary seismic waves and are the ones that take longer to arrive.</span>
Things around us are usually made up of combinations of elements. These combinations are called molecules. Molecules make up combinations called compounds.
Water is an example. There are 2 oxygen atoms and 1 hydrogen atom (oxygen and hydrogen are elements). Together there molecules make up H2O (water) which is a compound.
I hope this makes sense! I'm happy to answer any other questions you might have :)
