Acertain atom has a number if four. how many protons does it have

What layer of the atmosphere is directly above the troposphere?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?