question: although they can be annoying, they usually resolve on their own over a period of weeks, and are rarely medically serious.
Capitalize this past sentence correctly.
A: Although they can be annoying, they usually resolve on their own over a period of weeks, and are rarely medically serious.

question: you can select the most appropriate payment procedure: bank transfer, check, credit card, paypal etc.
Capitalize this past sentence correctly.
A: You can select the most appropriate payment procedure: bank transfer, check, credit card, PayPal etc.

question: 072100 mining of uranium and thorium ores
Capitalize this past sentence correctly.
A: 072100 Mining of uranium and thorium ores