Answer:
In space there is literally NOTHING to reflect light except planets, moons, etc.
Water reflects blue light at the surface.
The answer is D because Jutland is a peninsula, while Ireland, Iceland, and Sicily are all islands.
The inner core is solid because it is made of very dense, or heavy, materials - like iron and nickel. Even though it is very hot, these materials don't "melt" very easily, so they stay solid. Also, pressure due to the weight of the mantle and crust, atoms are forced together as solid.
Answer: Cloud at medium altitudes are:
A: They are made of ice crystals.
Explanation: Mid level cloud forms ice crystals when the temperature is cold.