Although aluminum is a more active metal than iron, and therefore, oxidizes more quickly than iron, aluminum degrades much more slowly than iron. This is because:
There is more aluminum than iron available on the Earth.
Aluminum oxide coats the exposed aluminum surfaces preventing further corrosion.
The iron is more reactive with a greater number of environmental agents.
The iron oxide is much more soluble in water than the aluminum oxide.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

What is the effect of returning nuclear reactor cooling water back into bodies of water?

An experiment is conducted to see if cats preferred skim milk or 2% milk. a cup of skim milkwas put out for 5 kittens and then measured how much the kittens drank over the course of aday. following a cup of 2% milk was purout for the skittens and then masured how much thekittens drank over the course of a day. the same kittens were used and the milk was served atthe same temperature. it was discovered that the cats liked the 2% milk more than the skimmilk. what is the dependent variable in this experiment?