Good job, Maria! I only saw a few issues. One being the article "a", another being an issue with comparisons and adverbs, and a simple spelling mistake. For example, we typically use the word "more" with adjectives that don't already have a comparative form. For example, "difficult" doesn't have an "-er" comparative, so we usually say "more difficult". Also, you misused the word "quickly" which is an adverb, not an adjective. If you wanted to use "quickly", you'd have to say "because it travels quickly". One more thing is the spelling of "plain" and "plane". This is what's known as a homophone. They have the same spelling and pronunciation, but very different meanings.