The answer of an addition problem.
What is sum?
A disease spread across a country or the world.
What is pandemic?
The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
What is air?
The answer of a division problem.
What is quotient?
To accommodate; adjust.
What is adapt?
Not able to be seen through; not transparent.
What is opaque?
The number below the line in a common fraction; a divisor.
What is denominator?
A person walking along a road or in a developed area.
What is pedestrian?
The biggest star around which the earth orbits.
What is sun?
A number with exactly 2 different factors-itself and 1.
What is prime number?
Easily persuaded to believe something; credulous.
A group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.
What is constellation?
In the opposite direction to the way in which the hands of a clock move around.
What is counterclockwise?
A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
What is hypothesis?
The region of the earth's atmosphere above the stratosphere and below the thermosphere, between 50-85 kilometers above Earth's surface.
What is mesosphere?