Matter is anything & everything around you.
A chair,baseball,person,shoes,desk,etc are all made of matter
A) Exosphere
This is the outermost layer of the atmosphere
Answer: The last one I think
Explanation:
Explanation:
Group 1A consist of metals and group. 2A consist of non metals . group1A elements can become stable by donating 1 electron in the same way the elements of group 7A also becomes stable by gaining one electron . So due to being so close to being a inert gas element it is compared to the nearest noble gas.