The following sentence may have an ERROR in the use of commas. If it does, choose the revision that corrects the error. If it do
es not have an error, choose "Correct as is." a. Arches National Park in Utah, where many western movies have been filmed, is filled with many natural stone arches. b. Arches National Park in Utah, where many western movies have been filmed is filled with many natural stone arches. c. Arches National Park in Utah where many western movies have been filmed, is filled with many natural stone arches.
The sentence "Arches National Park in Utah, where many western movies have been filmed, is filled with many natural stone arches." is correct as it is.
Explanation:
The use of commas in this sentence is setting apart the irrelevant information about the subject which makes this sentence a composed sentence being "where many western movies have been filmed" a subordinated sentence since this could be removed from the complete statement and it would not affect the message.
Wood: Combustion reaction converts chemical energy into light and heat. Petroleum: Can be burned to release light and heat or changed into another form of chemical energy, such as gasoline. Chemical batteries: Store chemical energy to be changed into electricity.
