2- sick family returning from a foreign country
The endothermic process is any process which requires or absorbs energy from its surroundings, usually in the form of heat. It may be a chemical process, such as dissolving ammonium nitrate in water, or simply the melting of ice cubes.
Finger print easy to identify . DNA test. forssoic science . it's very useful crime investigate and etc
I can't read the paper, so all I can say is read Darwin's Survival of the Fittest and you will understand evolution.
