Question

Write whether each underlined word is an adverb or a preposition.
1. We trekked over the mountain pass.
2. John and Aman went outside
3. They are building a bridge across the river.
4. Alia ran upstairs.
5. Your clothes are in the washing machine,
6. Why don't you sit down?
7. When the teacher entered, the students stood up.
8. Karuna is seated between John and Natasha.​

Answer 1

Answer:

Most viruses have either RNA or DNA as their genetic material. The nucleic acid may be single- or double-stranded. The entire infectious virus particle, called a virion, consists of the nucleic acid and an outer shell of protein. The simplest viruses contain only enough RNA or DNA to encode four proteins

Answer 2

Answer

1. preposition
2. adverb
3. preposition
4. adverb
5. preposition
6. adverb
7. adverb
8. preposition

Explanation:

Preposition :-

It is always followed by a noun or pronoun

Adverb:-

It tells us about a verb or an action. It does not have a pronoun or noun after it .