Aman was robbed in an alley outside a busy restaurant. he was assaulted with a baseball bat that was left at the scene. there were bloody footprints leading away from him. he was treated by paramedics and taken to a hospital. two witnesses saw the robbery. the suspect fled the scene. which task should be done by detectives? a) take photographs of the scene including the bloody footprints b) secure the crime scene c) interview the witnesses d) collect the bat and the blood samples

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.