James Jay’s system required two chemicals. One, called white ink and another to make the invisible... visible.
Hello! Here is the answer to your question.
A gerund is a verb that ends with -ing so the answer to your question would be folding.
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In the following sentences you will find a verb phrase in sentence A.
Answer:
Air flows in different directions over long distances.
Explanation:
Air circulation is determined by different factors: over long distances, air change directions because it come in contact with other flows, which can be colder or hotter, thus making the air chancing directions.
These movements creates low and high pressure zones, which in turns create atmospheric phenomenons.
