What first comes to my mind is that one or more rivers feature very prominently in these civilizations: the Nile in the Egyptian and the Tigris and Euphrates in the Babylonian.
Answer:
d). It is easier to make a large reflecting telescope than a large refracting telescope.
f). A reflector can collect more light than a refractor.
Explanation:
A telescope is a device that is used to observe distant objects by the use of lenses and mirrors. It is also used to observe different distant objects by their reflection, absorption, emission or the reflection of the electromagnetic radiations.
Most of the professional telescopes are reflectors because :
1. The reflected telescope is able to receive more of the light when it reflects all the light falling on surface. And it is easier for making a large telescope rather then making large lenses for the refracting telescope. So it is easier to make large reflecting telescope than a large refracting telescope.
2. A reflected telescope receives all the wavelength of the light and it reflects all the light falling on the surfaces where it is refracted telescope that contains lenses cannot absorbs all the light and causes the chromatic aberration.
The construction and operation of dams in the Colorado River have multiple benefits that include having increased water for irrigation and domestic supply, generation of hydroelectric power energy, providing improved aquatic recreation and wildlife habitat, and flood control.
1. <span>an expert in or student of anthropology
2. </span><span>an expert in or student of the development, structure, and functioning of human society
3. the people
4. </span>Urban geography<span> is the subdiscipline of </span>geography<span> which concentrates on those parts of the </span>Earth's surface<span> that have a high concentration of </span>buildings<span> and </span><span>infrastructure
5. </span><span>are atmospheric scientists who study the Earth's climate
6. </span><span>A geologist is a scientist who studies the solid and liquid matter that constitutes the Earth as well as the processes that shape it
7. </span><span>is a scientist who studies fossils. If your basement is filled with fossils found while out on hikes, then you're an amateur </span><span>paleontologist
8. </span><span>covers a wide range of topics, including marine life and ecosystems, ocean circulation, plate tectonics and the geology of the sea floor, and the chemical and physical properties of the ocean</span>
