What's an invasive species? A. A native species that begins to displace other local species
B. A species that invades an area because it has run out of space in the neighboring area
C. A species that's naturally expanding its range
D. A species that's introduced to a place where it's not native and then becomes widespread and competes with local species for the available resources

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.