Answer:
theres only 118 elements that are discovered. now that they're the only ones out there
Explanation:
The answer is D light rays shine on an object which then reflects back to our retina
Answer:
Acceleration, 
Explanation:
Given that,
Mass of the planet Krypton, 
Radius of the planet Krypton, 
Value of gravitational constant, 
To find,
The acceleration of an object in free fall near the surface of Krypton.
Solution,
The relation for the acceleration of the object is given by the below formula as :



So, the value of acceleration of an object in free fall near the surface of Krypton is 
the answer is earth for the first one and sun for the second one