Answer:
it is used as a pathway that vehicles can use to reach their destination efficiently.
Explanation:
Land Vehicles can still move without roads, but roads provide an ideal surface and spacing that accommodate a lot of vehicles to move at the same time without being stucked or collided with one another.
Canals have similar function with this, but it is designed specifically to accommodate water vehicles (boats or ships). We rarely see canals in Untied States. But cities like Venice in Italy implemented canals really well.
The Declaration of Independence was signed on July 4th, so the Anniversary will always be on this day.
It was signed in 1776, so an important anniversary was in 1976, the Bicentennial. There is an anniversary each year, and another important anniversary will in in 2026, 250 years from the Declaration.
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Answer:
The Sun is a star at the center of our Solar System. It is an almost perfect sphere of plasma. It is essential for life on Earth. It is also almost 4.5 BILLION years old! It generates our magnetic field.
Explanation:
Intrusive igneous rocks include gabbro, granite, and diorite. Each rock differs in that it was created by a separate silica-containing magma.
Despite having different silica concentrations, granite, diorite, and gabbro are all products of magmas. Gabbro is a typical rock that contains 45% to 55% silica. With a silica content ranging from 55% to 65%, diorite is a middle-ground rock. With a silica concentration of more than 65%, granite is an acidic rock.
The most common elements in the Earth's crust, silicon and oxygen, are combined to form silica, also known as silicon dioxide (SiO 2). Silica, which makes up the majority of more than 95 percent of all known rocks, makes up 59 percent of the Earth's crust. Quartz, which is by far the most prevalent crystalline variety of silica, tridymite, and cristobalite are the other two.
Learn more about silica compositions here
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