The amount of output in a specific amount of time with a given amount of resources is referred to as
what

it makes the person recieving the message not feel comfortable with the banana

not concrete, existing in thought or as an idea but not having a physical or concrete existence

to show how the cables work.

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.