Answer:
D) Phosphorous catches fire in air.
Answer: Bribery of Public Officials Prohibited - 18 U.S.C. § 201
Explanation:
This statute prohibits a Government employee from receiving or soliciting anything of value in exchange for being influenced in the performance or nonperformance of any official act, including giving testimony, or in exchange for committing fraud.
Answer: B. Show that light was composed of different colored rays
Explanation:
In the eighteenth century Isaac Newton found out that when a beam of light from the Sun, passes trhough a prism is decomposed in many different colors. He named this phenomenom as dispersion of light.
This phenomenom occurs when a beam of white light (which is compound of many wavelengths or "colors") is refracted (the different rays of light are diverted depending on their wavelengths) in some medium, leaving their constituent colors separated.
Sahelanthropus, Orrorin, Ardipithecus, Australopithecus, and Paranthropus are just a few of the genera that exhibit postcranial transformation and canine reduction throughout the first four million years or so of hominid evolution. There is a concurrent change in the hominid fossil record as the Pliocene epoch came to an end and the world climate was changing about 2.5 million years ago. Something novel arose in this setting, both physically and behaviorally, as it became cooler. The genus Homo originated from this.
The commencement of the transition from primordial, large-brained, stone tool-making, meat-eating apes that spread out across the globe to the species Homo's beginnings in Africa is marked by this change. Three species, Homo habilis, Homo rudolfensis, and Homo erectus, are considered to be the earliest members of the human genus. It is well known that H. habilis was the first species to produce stone tools and that it still possesses basic characteristics that connect it to australopiths. Aside from the fact that H. rudolfensis shared both time and space with other early Homo and had a larger brain and set of teeth than H. habilis, little is known about this species. Thanks to its extensive fossil record, we now have a better grasp of the paleobiology and evolution of the more complex H. erectus. With a physique designed for contemporary striding locomotion, H. erectus was the first fully committed, obligate biped to emerge outside of Africa. It was also the first member of the human ancestry to leave Africa. The first Homo species are the ones who tipped our evolutionary history's scales away from the more ape-like direction and toward the more human one.
To know more about Australopithecus
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