A gamma ray is part of the electromagnetic spectrum. Compared to photons of X-rays, a gamma ray has?

A gamma ray has most energetic photons in the electromagnetic spectrum and also have the shortest wavelength.

Explanation:

Gamma ray is the packet of electromagnetic energy/photons emitted from excited nucleus of some radionuclide as a result of radioactive decay.

Gamma rays photons have energy greater than 100keV which account for the high penetrating power than that of X-ray. Gamma ray can penetrate various materials including human body, but a denser object like 'lead' can be used to slow or stop gamma rays.

X-ray wavelength are longer than the Gamma ray. X-ray energies range from 100eV to 200keV,but that of Gamma ray is higher which is above 100keV.

which three statements are true about all alloys?

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.