verb and global issues

What is a verb in a sentence in English language . ex: “I study English”.

• The action, activity or movement performed in the sentence.

• The person o thing who does the action in a sentence.

• The object or thing affected by the action

• The way how a person performs an action.

Which is the verb in this sentence “ I investigate about global issues”

• I

• Investigate

• About

• Global issues.

Which of these words is NOT a verb.

• Investigate

• Global issues

• write

• describe

The action, activity, movement performed in a sentence.

• Pronoun

• Adjective

• Verb

• Noun

The problem we have __________is intensive farming.

• thrown

• chosen

• consist

• benefit

The possible ________of food problems is unfair wealth distribution

• solution

• effect

• cause

• closure

The radioactive contamination _________ in the air, water, soil and others.

• occurs

• worried

• emit

• located

We are __________about people who throw away a huge amount of jeans.

• happy

• worried

• emit

• located

We have___________ that many people have forgotten that we can give a second use to the jeans.

• occured

• observed

• disposed

• located

The amount of trash ______________ by huge companies.

• save

• observed

• disposed

• located