Answer:
It is nucleus.
Explanation:
As you see in pic in center you see protons and neutrons. And electrons are surrounding them.
The mass of proton and neutron us close together but electron has the less mass.
1380 kilogram/cubic meter
The answer to your question is Ferns
Ferns are called nonflowering plants and produce spores instead of seeds.
Hence, the wavelength of the photon associated is 1282 nm.
