Which is a characteristic of an amorphous solid? particles arranged in a repeating pattern

has a distinct melting point

made up of crystals

becomes softer as temperature rises

On a cold day, when the air temperature is 0°c, you empty your lungs and take a deep breath, filling your lungs with 4.2 l of air. if you hold your breath until the temperature of the air in your lungs reaches 37°c, what is the volume of the air in your lungs at that point, assuming the pressure does not change?

Which feature indicates that mars resides in the inner region of the solar system

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?