Question

answer the following
define amplitude.

uses of ultrasound
expand hcfcs
define smog
harmful effects of acid rain
explain nitrogen cycle
importance of ozone layer

Answer 1

Maximum displacement is called amplitude.
You can search others on google.

Answer 2

Amplitude, in physics, the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position. It is equal to one-half the length of the vibration path.


Use during medical procedures. Ultrasound imaging can help doctors during procedures such as needle biopsies, which require the doctor to remove tissue from a very precise area inside the body for testing in a lab. Therapeutic applications. Ultrasounds sometimes are used to detect and treat soft-tissue injuries.


Definition of hydrochlorofluorocarbon: any of a class of inert compounds of carbon, hydrogen, chlorine, and fluorine, used in place of CFCs as being somewhat less destructive to the ozone layer.


Definition of smog: fog or haze intensified by smoke or other atmospheric pollutants.

The ecological effects of acid rain are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife. ... Some types of plants and animals are able to tolerate acidic waters and moderate amounts of aluminum.

Definition of nitrogen cycle: the series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition

Ozone is a gas in the atmosphere that protects everything living on the Earth from harmful ultraviolet (UV) rays from the Sun. Without the layer of ozone in the atmosphere, it would be very difficult for anything to survive on the surface. (Think of a very bad sunburn, only much worse!)


hope it helps you.....