It is because all these three elements contain ionic properties and they have only one element in their outermost shell
Answer:
The options to complete the question are
1
2
3
4
The answer is nothing else but 2.
<span> A creep meter uses a wire that stretches across a fault to measure horizontal movement of the ground, and a </span>laser-ranging device uses alaser<span> beam & reflector to detect Horizontal fault movements. I hope this is right.</span>
Which is the first indicator of an infection in the body?
<span>
B. an increase in the number of WBCs in the blood</span>