Answer:
Modern birds descended from a group of two-legged dinosaurs known as theropods, whose members include the towering Tyrannosaurus rex and the smaller velociraptors.
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Containment
The first step in cleaning up a water-based spill is to contain it. Depending on the severity of the spill, you may want to spread out a containment berm to keep the liquid confined to a particular area. If an above-ground tank is leaking a water-based chemical, for instance, you could lay out a berm underneath the source of the leak. Assuming the berm is large enough, it should catch the water-based liquid so it doesn’t spread on the floor.
Note: we talk about the differences between containment booms and berms in one of our previous blog posts. It’s not uncommon for people to confuse these two spill cleanup tools with one another. While booms and berms share some similarities, there are notable differences between the two that shouldn’t go unnoticed.
Clean Up
Once the spill has been properly contained, you should then work on cleaning it up. The good news is that water-based spills are typically easier to clean, but the bad news is that you’ll still have to put some elbow grease into it.
There are several different products designed for spill cleanups, so use them to your advantage. You can use absorbent socks, pillows, pads, mats and rolls to help soak up the water-based liquid. Place these absorbent items into the heart of the spill so they will soak up the water-based liquid. When they are full, carefully remove them from the spill area and dispose of them in a plastic garbage bag. Continue soaking up the spill until there’s no remaining liquid left behind.
When choosing products to clean up a water-based spill, it’s best to stick with ones labeled “universal.” Universal spill cleanup products are all-purpose and can be used for a wide variety of instances, including both aggressive and non-aggressive spills.
Answer: Cheikh Anta Diop ajudou a resolver a questão egípcia criando em 1966 o laboratório de radiocarbonato.
Explanation:
Answer:Dollar Diplomacy sought to bolster the struggling economies of Latin American and East Asian countries while also expanding U.S. commercial interests in those regions. U.S. interference in Nicaragua, China, and Mexico in order to protect American interests are examples of dollar diplomacy in action.
Explanation:
This letter was written by Leo Szilard, a Hungarian-German-American physicist and signed by Albert Einstein on August 2, 1939. In this letter he urged the president to get involve on a nuclear research and project as Germany might be planning and developing an atomic bomb.
