Please capitalize where necessary: europa’s core is made of rock that sank to its center.
A: Europa’s core is made of rock that sank to its center.
Q: the main problems in nipple confusion are the bottles and pacifiers. the earlier you introduce the bottles, the more confused the baby would be.

A: The main problems in nipple confusion are the bottles and pacifiers. The earlier you introduce the bottles, the more confused the baby would be.
Q: the other piece that i don’t think lmss do very well today is building the social aspect of learning, so the whole idea of ples or personal learning environments is not something that the current scorm standard supports.
A: The other piece that I don’t think LMSs do very well today is building the social aspect of learning, so the whole idea of PLEs or Personal Learning Environments is not something that the current SCORM standard supports.
Problem: did someone email you a dce file and you're not sure how to open it? maybe you have found a dce file on your computer and wondering what it's for? windows might tell you that you can't open it, or in the worst case, you might encounter a dce file related error message.
Can you repeat this sentence, but capitalize it?
Answer: Did someone email you a DCE file and you're not sure how to open it? Maybe you have found a DCE file on your computer and wondering what it's for? Windows might tell you that you can't open it, or in the worst case, you might encounter a DCE file related error message.
Text: when irresolute theory offers an artificial logical cross-section of the mass strike to arrive at the ‘pure political mass strike’, this dissection, like any other, fails to perceive a phenomenon in its living essence, but merely serves to kill it off.

Correct capitalization: When irresolute theory offers an artificial logical cross-section of the mass strike to arrive at the ‘pure political mass strike’, this dissection, like any other, fails to perceive a phenomenon in its living essence, but merely serves to kill it off.
Problem: metabolism can be understood as your body’s mechanism to convert food consumed by you into energy.
Can you repeat this sentence, but capitalize it?
Answer:
Metabolism can be understood as your body’s mechanism to convert food consumed by you into energy.