vaccines are weakened viruses or bacteria that prompt the body to develop antibodies to foght against disease
Answer:
RoHS applies to the following substances for electronic equipment and electrical appliances: lead, mercury, cadmium, hexavalent chromium, PBB (polybrominated biphenyls), and some PBDEs (polybrominated diphenyl ethers).
Scientist study index fossils so they will get an understanding of what life was like back then.
Answer:
The "Jaws of Life" is a crucial tool to fire and rescue squads to save hundreds of lives every year. ... The “Jaws of Life” is used indeterminately for pretty much any type of heavy-duty tool that acts like a pair of scissors, cutter, spreader, or ram-device aimed at slicing and dicing through most automotive metals.
Explanation:
The signal Hawkeye and the men agreed on while nearing the Huron encampment were three croaks of a crow.
Hawkeye tells his men to scout the area and in the case that they or he find something, they should use the signal in the form of thee croaks of a crow to warn the others about the danger. However, the only thing he finds in the encampment are a couple of Indians.
