Which statement about membranes is TRUE? Most plasma membranes contain more than 70% proteins sterol lipids are common in human cell plasma membranes. Sterol lipids are common in bacterial plasma membranes. The plasma membranes of all cell types within a particular organism have basically the same lipid and protein composition.

Sterol lipids are common in human cell plasma membranes

Explanation:

Human plasma cell membrane contains sterol lipids and proteins which serves as structural maintainers of the cell.

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.