If you are trying to reduce echoes in a room, what should you add to the room?

Cover the Floor. Carpets and rugs do more than provide soft padding for your feet. ...

Cover the Walls and Windows. Wall and window coverings reduce the amount of sound reflecting off window glass and hard wall surfaces. ...

Fill Rooms with Furnishings. ...

Explanation:

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

the ratio of the conjugate base to the acid required to attain the desired ph.