Answer:
D Microwaves
Explanation:
It has an electromagnetic radiation with wavelengths ranging from about one meter to one millimeter; with frequencies between 300 MHz (1 m) and 300 GHz (1 mm)
Answer:
francium
Explanation:
The most expensive natural element is francium, but it decays so quickly it can't be collected to be sold.
Answer:
its created when the bacteria reduces the effectiveness of a drug and that drug no longer has a strong effect on it.
Explanation:
it is very bad because they can survive and multiply much more and since they are resistant we cannot get rid of them so medicine wont work against them.
They are capable of renewing and dividing (multiplying) themselves for long periods of time, they are unspecialized, and they can give rise to other specialized cell types. Hope this helps!! :)
