Explanation

Explanation

The colon: is a punctuation mark consisting of two equally sized dots placed on the same vertical line.

A colon often precedes an explanation, a list, or a quoted sentence.

Explanation

Explanation

A hygrometer is an instrument used to measure the amount of water vapor in air, in soil, or in confined spaces.

Explanation

A helping verb always stands in front of a main verb. 

Explanation

Latin America is the cultural region of the Americas comprising multiple nation-states where Romance languages.

Languages that derived from Latin, i.e., Spanish, Portuguese, and French are predominantly spoken.

Explanation

We use would as the past of will, to describe past beliefs about the future: I thought we would be late, so we would have to take the train.

Explanation

A noun is a word that generally functions as the name of a specific object or set of objects, such as living creatures, places, actions, qualities, states of existence, or ideas.

Explanation

The Sustainable Development Goals or Global Goals are a collection of 17 interlinked global goals designed to be a "blueprint to achieve a better and more sustainable future for all". 

Explanation

Since the first nuclear test explosion on July 16, 1945, the following eight nations have detonated nuclear test explosions at dozens of test sites: 

United States

USSR/ Russia

United Kingdom

France

China

India

Pakistan

North Korea