Scientist and science teacher
Answer:
I would believe the correct answer is A, To find solutions to problems.
Explanation:
Technology is not actually just T.V's and phones (etc) but instead Technology is actually objects that are ment to make an action easily and more efficiently.
Answer:The cell was no longer visible because the image wasn't centered before switching to higher objective of 40X.
Explanation:
While using microscopes, the image will approximately remain in focus if you adjust the focus during change of magnification. Therefore, there is need to always adjust the focus during change in magnification.
If object is not centered before switching to a higher power objective, object will not be visible.
To avoid this, center the object before switching to a higher power objective. This will help you find the object after switching the objective. And it is also important to use fine focus and not coarse focus.
The ph scale ranges between 0 to 14. I hope this helps love! :)