PLEASEEE Continental crust is less dense than oceanic crust because it contains less:

Question 5 options:

Silicon

Oxygen

Aluminum

Iron

Iron

Explanation:

The continental crust is less dense than oceanic crust because it contains less amount of iron.

The continental crust is predominantly rich in alumino-silicates.

Although compared to oceanic crust, the continental crust is thicker. The oceanic crust is made up of iron and magnesium rich minerals. They are called mafic minerals. These minerals are much denser than the alumino-silicates.

Because electrons have negligible mass, to account for the mass of the isotope, there must be 16 neutrons, 16 neutrally charged, massive, fundamental particles present in the sulfur nucleus. and thus finally, if we have the 32s2− ion, there are 18 electrons, 16 protons, and 16 neutrons.

Most likely a is the answer - because  you generate   38 atp's but also consume an atp.   each atp gives approx. less than 4 kcal so probably a is the closest answer.