4. What is the difference between lava and magma? A) Lava is cold and magma is hot (B) Magma flows from volcanoes and lava does not (D) Lava is molten material below ground, and magma is above ground (D)

To clarify the difference between lava and magma: - **Magma** is molten rock that is found beneath the Earth's surface. It is formed from the melting of rocks in the mantle and crust due to high temperatures and pressures. - **Lava** is magma that has reached the Earth's surface through volcanic eruptions. Once it erupts, it is referred to as lava. Now, let's evaluate the options provided: A) **Lava is cold and magma is hot** - This is incorrect. Lava is hot, just like magma. B) **Magma flows from volcanoes and lava does not** - This is incorrect. It is actually lava that flows from volcanoes, not magma. C) **Lava is molten material below ground, and magma is above ground** - This is incorrect. It is the opposite; magma is below ground, and lava is above ground. None of the options accurately describe the difference between lava and magma. The correct distinction is that magma is underground molten rock, while lava is magma that has erupted onto the surface.