Answer:
E
Explanation:
All others conduct electricity and heat.
Answer:
The answer is "telescopes".
Explanation:
Throughout ancient times, astronomical observatories have indeed been available, and so many historical locations were reserved for astronomical observations. All contemporary astronomers lacked within those older telescopes were lenses until 1610. A telescope is indeed an instrument used to view far-off objects. Telescopes often are being used to look at planets and stars.
the focal length <span> is much more decent for a concave, and also worse</span><span> for a convex mirror. When the image that is given, distance is good and decent, images are always on the same area of the mirror as the object given , and it is not fake. images distance is </span>never positive <span>, the image is on the oppisite side of the mirror, so the image must be virtual.</span>
NONE of those choices defines the law of conservation of energy,
and none even describes it. It's as if these choices belong to
a whole different question.
In fact, none of the choices is even a true statement by itself !
A statement that defines the law of conservation of energy
would have to say something like this:
The total amount of energy in any closed system is constant.
The total amount of energy after any event or process is the
same as the total amount was before it.
