Because it has to produce its own air, the Martian city will be small." This sentence is written as a cause and effect text structure.
true or false

True.

Explanation:

Text structure can be defined as words used to describe how a writer or an author organizes his or her words in a literary work.

In English language, there are five (5) nonfiction text structures and these includes;

a. Sequence: this type of text structure make use of words such as after, before, finally, next, then, etc., to describe an event in a timely manner or order of time.

b. Compare and Contrast: it used for the comparison of two or more things to show similarities and differences i.e how they are alike and different.

c. Description (list): this type of text structure list lot of facts or details about a subject, making use of phrases such as more importantly, for instance, for example, etc.

d. Problem and Solution: it describes a problem and proffers a solution using signal words such as dilemma, solve, problem, etc.

e. Cause and Effect: it gives the relationship between two things or events in which an occurrence of one (cause) leads to the occurrence of another (effect). Signal words such as consequently, because, as a result, therefore, due to, since, etc.

Therefore, this sentence "Because it has to produce its own air (cause), the Martian city will be small (effect)" is written as a cause and effect text structure.

This ultimately implies that, Martian city is small in terms of geographical size or population because has to produce its own air for use.

it is true my friend

adverb is the answer i believe.