Please capitalize where necessary: polyester is produced from crude oil.
A: Polyester is produced from crude oil.

Q: rasphone.exe missing / not found error: unavoidably pc may get infected by virus like trojandownloader:js/agent.di or controlled by malware like tuneup360. after they are removed by antivirus such as malwarebytes anti-malware pro, the infected file rasphone.exe would be deleted as well so that missing problem is found.

A: rasphone.exe missing / not found error: Unavoidably PC may get infected by virus like TrojanDownloader:JS/Agent.DI or controlled by malware like TuneUp360. After they are removed by antivirus such as Malwarebytes Anti-Malware PRO, the infected file rasphone.exe would be deleted as well so that missing problem is found.

Q: the meeting is limited to 15 minutes.
A: The meeting is limited to 15 minutes.

Problem: we welcome trade enquires from importers / exporters, wholesalers and bulk quantity orders from all over the world. we offer customers a wide range of product services.
Can you repeat this sentence, but capitalize it?
Answer: We welcome trade enquires from importers / exporters, wholesalers and bulk quantity orders from all over the world. We offer customers a wide range of product services.

Text: azur hotel - search for free rooms and guaranteed low rates in epinal and book your stay at hotel azur hotel - where to stay and live in a city in epinal, france

Correct capitalization: Azur Hotel - Search for free rooms and guaranteed low rates in Epinal and book your stay at hotel Azur Hotel - Where to stay and live in a city in Epinal, France

Problem: bird photos, bird pictures, sounds of birds
Can you repeat this sentence, but capitalize it?
Answer:
Bird photos, bird pictures, sounds of birds