When magnesium combines with sulfur to form magnesium sulfide, it is oxidized to mg2+. which statement is true about this reaction?

a.
it involves gain of electrons.
b.
it involves loss of electrons.
c.
it involves loss of oxygen.
d.
it involves gain of hydrogen.

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

Explain the difference between incomplete dominance and codominance

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?