question: messages – where teachers can post messages for the course participants in the group.
Capitalize this past sentence correctly.
A: Messages – where teachers can post messages for the course participants in the group.

question: climate sensitivity can be calculated from empirical observations.
Capitalize this past sentence correctly.
A: Climate sensitivity can be calculated from empirical observations.

question: home / wheel search / stainless steel wheel from injected polyurethane, roller bearing stainless steel, wheel-Ø 100mm, 300kg
Capitalize this past sentence correctly.
A: Home / Wheel Search / stainless steel wheel from injected polyurethane, roller bearing stainless steel, Wheel-Ø 100mm, 300KG