Study the Periodic Table of Elements as shown in the diagram above. Write twenty elements and their symbols in your paper.
ELEMENT
SYMBOL
ELEMENT
SYMBOL
1.
11.
2.
12.
3
13.
4.
14.
5.
15.
6.
16.
7.
17.
18.
8. .
19.
10.
20.

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Which season occurs in the northern hemisphere when the sun is at its lowest point in the sky

Religious conflict in northern ireland started with a) cultural differences resulting from viking invasions around 800 b) england’s split from the catholic church in the 1500s c) rebellions in ireland between 1916 and 1921 d) the norman invasion of england in 1066