Answer:
Hair
Explanation:
The scientist predict that the contamination occurred several months ago. Under normal circumstances, most organisms would no longer have a trace of exposure in their urine or blood after 3 months. If the organisms exposed to the radioactive three months ago and do not come near that area again within 3 months, the scientist wouldn't be able to identify it.
But, if that substance got into their hair, it will last way longer than that. Hair Analysis is very common to be used among forensic toxicologist to identify contamination that occurred months because of this.
It caused people to look and study our world more closely that can be explained ed
The Meat industry with he’s book
Answer:
True
Explanation:
The topography of the European continent is mostly flat, especially in the Eastern part of the continent where the Northern European Plain becomes the immense Russian steppe that is only separated from Asia by the Ural Mountains.
This open topography has made the continent vulnerable to invasion until recently. This is why Huns in the Late Antiquity, and the Mongols in the Middle Ages, were able to sweep the continent coming from the same place: Mongolia.