The correct answer is: A) Sanitation
Sanitation refers to the conditions that relate to public health, including the provision of clean drinking water as well as sewage disposal. The lack of basic sanitation leads to numerous problems. One of the most important is the death of thousands of children, over 525,000 of them dye every year because of diarrheal disease according to the World Health Organization.
Answer:
Tigris and Euphrates Rivers in southern Mesopotamia, today's southern Iraq.
One observation definitely disproved the Ptolemaic<span> model, although it didn't prove that Copernicus was right. This was the observation that Venus has phases, much like our Moon does.</span>
The main purpose of the Selective Service Act of 1917 was to "<span>increase the size of the armed forces by using the draft", since the demand for soldiers could not be met by volunteers only. </span>
Option D, the Necessary and Proper Clause, is the right answer.
By contrast, the Necessary and Proper Clause clearly grants incidental authorities upon Congress. This Necessary and Proper Article is sometimes called the elastic clause. This clause comes under the section VIII of the Article I, in the constitution of the United States. The Necessary and Proper clause empowered the Congress to enact the regulations required for the performance of its other authorities instituted by the Constitution. For instance, to direct Commerce with different Nations, and among various states, and with Indian tribes comes under the Necessary and Proper Clause.
