Which preposition is correct?

Hello Hindi learners, hope you all are doing well. Here is the question for you. How do you say " school" in Hindi?

American slang words #.12. Vibe Check This phrase is more than just asking someone how they're feeling; it's about assessing the overall atmosphere or energy of a situation. It looks like this phrase started as one of the New York slang words but nowadays it's everywhere. This is one of the common slang words you can use whether you're entering a room or starting a conversation, a vibe check ensures you're on the same wavelength as the other English speakers around you.

For Turkish learners: Dear students! Please enjoy my channel devoted to little Turkish fairy tales! Here comes the first episode about a clever fox and a hungry rabbit!

Hello native English speakers. Could you do me a favour and help me for my queries about two sentences. 1a. The sea has eroded the cliff face over the years. ( This is a complete sentence) 1b. The sea's erosion of the cliff face over the years. ( This is a noun phrase) 1c. The erosion of the cliff face by the sea over the years. ( This is a noun phrase) Question: Are they all grammatically correct? Can these "expressions" be suggested the same meaning? 2a. Tom furtively ate three apples last week. ( This is a complete sentence) 2b. Tom's furtively eating three apples last week. ( This is a noun phrase) 2c. Tom's furtive eating of three apples last week. ( This is a noun phrase) 2d. For Tom to eat three apples furtively last week. (This is a noun phrase expressed by infinitive) Question: Are they all grammatically correct? Can these "expressions" be suggested the same meaning?

"We still use many natural materials for our clothes like cotton, wool, silk and leather. We also use man-made textiles, like acrylic, polyester, and nylon." I wonder if it would be more appropriate to say fibers/materials instead of textiles？