A. One type of element but I could be wrong if not more than one type of Elena chemically bonded
The atmospheric temperature zone
most precipitation occurs is the troposphere. It has temperature of normal to 0
degrees Celsius. Most of the weather phenomena occurs in this layer. Its altitude
is 10 – 15 km thick above the Earth’s surface.
Answer:
They're made of more than one cell
Explanation:
I can help with the first one and third for you.
Symbol | atomic # | Mass of # | # of Protons | # of electrons | # of neutrons
Na | 11 | 23 (when rounded) | 11 | 11 | 12
Sr | 38 | 88 (when rounded) | 38 | 38 | 50
(sorry if this didn't help)
