i'm no sciance wiz.?

Question

i need some siance help please!!!

Silicates always contain
aluminum.
oxygen.
quartz.
iron.

All intrusive igneous rocks contain
fossils.
granite crystals.
minerals.
microscopic cleavage.

Metals form positive ions because they easily
lose electrons.
gain electrons.
become neutral.
decay.

The smallest part of an element that has all the properties of that element is called a(n)
compound.
mixture.
atom.
electron.

Earth's greatest speed of rotation occurs at the
equator.
Tropic of Cancer.
Arctic Circle.
North Pole.

any help would be helpful hehehe

Answer 1

Silicates are radicals that are formed by combination of silicon and oxygen. So the answer is OXYGEN.

MINERALS is the answer, but you must not get the idea that the only the intrusive rocks are formed by minerals. Actually all the rocks are assemblages of minerals

LOSE ELECTRONS. Electrons are negatively charged, almost mass-less particles. So, losing electron will make an atom positively charged.

An ATOM. Atom is the smallest particle of an element showing all the characters of the element.

AT THE EQUATOR. Because any point on the equator will cover the maximum distance in a fixed interval of time, than any point on tropic of cancer, arctic circle or north pole.

Answer 2

Silicates always contain oxygen.

Inclusive igneous rocks contain microscopic cleavage.

Metals form positive ions because they lose electrons.

The smallest part of an element that has all the properties of that element is an atom.

The greatest speed of rotation occurs at the equator.