A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. ... A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter
Answer:
A straight angle measures 180°. ... An angle can be measured using a protractor, and the angle of measure 90 degrees is called a right angle. In a right angle, the two arms are perpendicular to each other. When the right angle is divided into two equal parts each angle measures 45°.
A mineral has 5 characteristics:-
Naturally occurring, Solid, Inorganic, Crystalline structure, and the same chemical composition.
I hope it'll help you...
The answer is San Francisco will be warmer than St.Louis in the winter.