You should get rid of any distractions so you can focus.
Your answer should be options 4, 5, & 6.. correct me if I’m wrong !
Hydrogen is more frequently bonded with Carbon.
Gravity: A force that keeps things in place sonit doesnt float around.
Mass: The amount of matter or substance that makes up an object
Weight: How heavy or light something is
Inertia: property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
It is part of the cell theory