Asperities are microscopic peaks and valleys on

On a surface.

Explanation:

Asperities are microscopic peaks and valleys on a surface. This simply means that, when asperities contacts, surfaces also make contact. Asperities are the roughness or unevenness of a surface coming in contact during wear or friction.

Surfaces presumed to be smooth

Explanation:

Asperity is an area that exhibit surface unevenness or roughness which consists of surface peaks and valleys that are present in  microscopic level on even very smooth. In lubrication, as the major part of the lubricated surfaces are kept apart by the lubricating layer, asperities are able to come in contact with other asperities .

Surfaces, presumed to be smooth actually contains peaks and valleys, observable on a microscopic scale, known as asperities.

answer:

science is the study of the nature and behavior of natural things and the knowledge that we obtain about them. a science is a particular branch of science such as physics, chemistry, or biology. physics is the best example of a science which has developed strong, abstract theories.

pseudoscience is a collection of beliefs or practices mistakenly regarded as being based on scientific method.

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answer:

the fed will purchase bonds from banks to inject money into the banking system. the banks can use these funds to provide loans to individuals and businesses.

explanation: