Answer:
C
Explanation:
With continental drift separating Pangea, we know that A and D must be false because they are farther apart today not closer. Between answer choices B and C, many of the species shown appear to have inhabited Antartica, and hardly anything lives there today. This leaves C as the most logical answer.
Answer:
"Chlorine" is the element which is likely to gain electrons in a chemical bond.
Explanation:
In chlorine there are seven electrons in the valence shell, it requires one more electron so that it will become full valence and the electron will achieve the stability. For chlorine it will be easier to gain one electron and become stable than to loss all the seven electrons present in it to become stable. Also the non metals gain electrons and becomes negatively charged ions later known as the anions.
Answer: Option C
Explanation:
The correct sequence which can be used to remember the sequence is as follows.
The people who tend to eat more oily food or cholesterol rich food is more prone to heart attack or cardiac arrest. Blockage occurs in the right and left coronary artery.
Because of the blockage there is a chance of insufficient blood supply in the heart. Ischemia pain starts in the heart due to inadequate oxygen supply.
Then finally the heart beat erraticates and may stop turning into cardiac arrest.