Answer:
Question 1: over 4.5 billion years all the above
Question 2: all the above
Question 3: The force of gravity pulled more and more material into the center of this swirling disk. Eventually, the pressure in the center was so great that hydrogen atoms began to combine and form helium, releasing a tremendous amount of energy.
Question 4: core is made up of heavy elements, such as iron and nickel, and lighter elements, such as potassium and sodium make up the surface.
Question 5: The process through which distinct layers with characteristic chemical and/or physical properties are formed
Explanation:
If the subject consists of two or more words that are connected by and, the subject is plural and requires a plural verb.
Books would be an example of printing media
Answer:
president of USA,Queen Elizabeth and camander house of chief
Explanation:
they are the most respected personalities and they are with much glory
It's a compound sentence because it has 'and'.