IXL | Identify run-on sentences | 10th grade language arts

Is this a run-on sentence?

Mexico is the world's largest avocado producer, one variety is so profitable that Mexican farmers refer to the fruit as oro verde, or green gold.

yes

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Learn with an example

question

Is this a run-on sentence?

In 2014, researchers discovered forgotten satellite images of Earth from the early 1960s that, when compared with recent satellite photographs, reveal how humans have altered the face of the planet.

yes

key idea

A sentence is a group of words that expresses a complete thought.

green checkmark, The band I'm in has been rehearsing daily because we have a concert in two weeks.

A run-on sentence is formed when two sentences are run together, joined by just a comma or by no punctuation at all. If only a comma is used, the run-on is called a comma splice.

red X symbol, The band I'm in has been rehearsing daily, we have a concert in two weeks.
red X symbol, The band I'm in has been rehearsing daily we have a concert in two weeks.

There are several ways to fix a run-on sentence:

Use stronger punctuation, such as a period or a semicolon.

green checkmark, The band I'm in has been rehearsing daily. We have a concert in two weeks.
green checkmark, The band I'm in has been rehearsing daily; we have a concert in two weeks.

Use a comma and a coordinating conjunction to create a compound sentence. Coordinating conjunctions include and, but, or, and so.

green checkmark, The band I'm in has been rehearsing daily, and we have a concert in two weeks.

Use a subordinating conjunction or a relative pronoun to create a complex sentence. Subordinating conjunctions include after, although, as, because, before, if, since, unless, until, when, and while. Relative pronouns include that, which, who, whom, and whose.

green checkmark, The band I'm in has been rehearsing daily since we have a concert in two weeks.

solution

This is not a run-on sentence. It is not formed from two sentences that have been run together without appropriate punctuation.

In 2014, researchers discovered forgotten satellite images of Earth from the early 1960s that, when compared with recent satellite photographs, reveal how humans have altered the face of the planet.

$Confetti$

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Work it out

Not feeling ready yet? These can help:

FF.6Is it a complete sentence or a run-on?

FF.2Identify the complete subject or complete predicate of a sentence

BB.4Identify dependent and independent clauses

BB.5Is the sentence simple, compound, complex, or compound-complex?

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