Explanation

Ctrl + X Cut selected items.

Ctrl + V Paste content from the clipboard.

Ctrl + A Select all content.

Explanation

The lithosphere is the rocky outer part of the Earth.

It is made up of the brittle crust and the top part of the upper mantle.

The lithosphere is the coolest and most rigid part of the Earth.

Explanation

He wanted to know who spoke French

Explanation

Explanation

"Sweets are not liked by us" is Passive

It is used here Present continues when we change to Active voice we will use Present Indefinite tense so,

    Us = we

    Are not = do not

    Liked = like

    Sweet= Sweets

Explanation

Polite the conversation about unimportant or uncontroversial matters, especially on social occasions.

Explanation

The speakers receive audio input from a device such as a computer or an audio receiver.

This input may be either in analog or digital form.

Analog speakers simply amplify the analog electromagnetic waves into sound waves.

Explanation

A hygrometer is an instrument used to measure relative humidity.

Humidity is the measure of the amount of moisture in the air.

A psychrometer is an example of a hygrometer.

Explanation

Several words are sometimes used as adverbs or sometimes used as prepositions.

A word is a preposition when it governs a noun or a pronoun, It is an adverb when it does not.

He moved on. “On” is an adverb here

Keep your books on the table. “On” is a preposition here

Explanation

Enterobacteria phage λ