Answer:
Biosafety level 3 requires at least two-door separation between the area where biohazards are used and the personnel not associated with the research, requires inward inflow into the lab and must have a visual mechanism to verify that air is flowing in the appropriate direction
Explanation:
Biosafety level 3 is required for clinical, diagnostic, teaching, researching or production laboratories working with microbes that are also following BSL-1 and BSL-2 but as these pathogenic agent can lead to life-threatening disease by inhaling it, besides other contaiment precautions, the BSL-3 facilities must have a separated entrance to laboratory door with unrestricted traffic flow and the lab must be behind two sets of self-closing doors and windows must be sealed, with a ventilation system properly directioned installed.
Answer:
Explanation:
Around 1830, producing 100 bushels of wheat required 250 to 300 hours of labor. By 1890, the labor required had decreased to between 40 and 50 hours. Wheat production efficiency improved five to eight times in this period.
In 1850, it took 75 to 90 hours of labor to produce 100 bushels of corn. By 1890, the same amount of corn required only 35 to 40 hours of labor. The amount of corn produced per hour of labor approximately doubled between 1850 and 1890.
Production improvements are linked to innovations such as the use of chemical fertilizers, threshing and mowing machines, and better plows and harrows.
Hope this helps:D
<u><em>-Jazz</em></u>
The forefather is paddling or beating the 1920s generation because the 1920s generation is having the attitude of discontentment although he has everything the world can offer. He was tempted by the material things but then still unsatisfied with what he has. The forefather just wanted the 1920s generation to be like him most likely thrifty, economical, and prudent.
Answer: A war of ideas is a clash or disagreement of opposing ideas, ideologies, or concepts through which nations or groups use strategic influence to promote their interests abroad.
Explanation: hopefully this helps
The Nile River was a body of water that they severely needed because, both sides of Egypt had deserts on them.
