Question

add a comma or semicolon if needed. otherwise, submit the text without any additional punctuation. scientists believe tornadoes form due to high relative humidity and significant wind changes in the lowest regions of the atmosphere furthermore, tornadoes only form if downdrafts are present in just the right part of the storm.

Explanation:

Step1: Check the relationship between the two sentences

The first sentence states why scientists believe tornadoes form, and the second sentence adds another condition for tornado formation. "Furthermore" is a conjunctive adverb.

Step2: Add the appropriate punctuation

When a conjunctive adverb connects two independent clauses, a semicolon is used before the conjunctive adverb and a comma after it.

Answer:

Scientists believe tornadoes form due to high relative humidity and significant wind changes in the lowest regions of the atmosphere; furthermore, tornadoes only form if downdrafts are present in just the right part of the storm.