The name of earth's single, huge continent from over 250 million years ago is (1 point)
a. megaland.
b. pangaea.
c. gondwanaland.
d. laurasia.

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.

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

One similarity and one difference between an element and a mixture of elements