Answer:
escavation
Explanation:
During excavation, archaeologists often use stratigraphic excavation to remove phases of the site one layer at a time. This keeps the timeline of the material remains consistent with one another.
Answer:
c. Lack of food sources
Explanation:
The groundwater has been used more and more around the world. There are large reserves of it, but in the past few decades the groundwater reserves have constantly been going down. The main reason for this is the lack of food sources. Because the global population is constantly on the rise, more and more food is needed, and in order to produce it, more and more farmlands are created. The increased number of farmlands means that more water is needed for irrigation, thus the groundwater reserves are the ones that suffer the most.
The Great Barrier Reef is special because it is by far the largest reef in the world. It is consisted of around 2,900 individual reefs. The size of this reef is approximately as the size of Germany. There are over 900 islands that are stretched over 2,600 km along the the reef. The Great Barrier Reef is so marking and big, that even though it is below water it can actually be seen from space. The ecological importance of this reef is enormous as it is a home for thousands of species, with approximately 10% of all fish species in the world living in it. Because of its beauty and numerous attractions, the Great Barrier Reef is one of the most visited tourist destinations, and the Australian economy manages to generate between 5 and 6 billion Australian Dollars annually from it. Unfortunately, all of the human activity has been affecting this reef very negatively, and little by little part of it is dying out.
Answer:
It is the only city in North America that is fortified
Explanation:
<u>Quebec is the only city in North America that is still fortified. </u>
The walls were put up by the British as a protection of the city and they stayed against the invasions of the Americans. The walls still exist, giving the city a unique and European look, along with cobblestone streets and old houses and buildings.
<u>Today, the fortification and the walls are protected by UNESCO and proclaimed World Heritage Site in 1985. </u>
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Answer:
Option (D)
Explanation:
The dry lines are the lines that split the dry air mass from the moist air mass. These lines generally move across a large continent and they are responsible for the occurrence of a severe type of weather pattern. These dry lines are most commonly found in the Aravalli ranges of Northern India and the eastern side of Rocky mountain in Northern America.
The presence of dry lines over an area results in a distinct drop in terms of humidity. They commonly develop over the western side of Texas, Oklahoma, and Kansas during the spring and early summer season.
Thus, the correct answer is option (D).
