A cataract is an area of a river where the elevation of the streambed changes too quickly or has to many boulders meaning people couldn't use part of the river as transportation.
This was a good thing because the cataracts effectively served as barriers so they could control travel. This meant that the Pharos found it impossible to control the land south of the first cataract. This ending up becoming the southern border of Ancient Egypt.
Hope this helped ☺️
Earth has a liquid outer core because that's the ocean and the earth is mostly made up by water.The earth has a solid inner by the mantle which is hard rock and made out of gas and rocks and it is very hot out there
Answer:
The Greeks had to raise crops and animals suited to the hilly environment and the climate of hot, dry summers and wet winters. Their crops were wheat, barley, olives and grapes.
Two statements support the claim that Jenner has been given credit for starting and spreading the practice of immunization:
- Jenner became interested in the protective effects of cowpox during his apprenticeship. Here, we are told that Edward Jenner started working on ways to defend the body against diseases as early as during his apprenticeship when he was a teenager. He had been told that farm workers who had contracted cowpox were immune to the smallpox epidemic which was spreading across Europe at the time. He then started working on a vaccine containing cowpox.
- Jenner made the first step to erase smallpox. This first step was to try his new smallpox vaccine on a child in 1796. The child did not catch smallpox. In order to get recognition and validation from the authorities, Jenner administered his vaccine to 22 more people, with success.
Answer:
1 . globalization = the integration of world economies or cultures
2 . bushmeat = food source obtained from hunting wild animals
3 . desertification = a change causing an area to become more arid
4 . groundwater = water beneath the earth's surface that supplies wells and springs
5 . cash crop = agricultural products grown to be sold
6 . desalinization = the removal of salt from something, e.g., ocean water
7 . sustainable = meeting current needs without reducing the ability to meet future needs
8 . organic farming = crop production that minimizes the use of chemicals
Explanation:
This is the correct way to match the definitions and the terms. All of these ideas relate to the topic of the environment and agriculture. Organic farming and sustainability are relevant topics in agriculture that help us protect our environment. On the other hand, cash crops and desertification are methods or processes that harm the Earth. Groundwater and desalinization play a role as they allow us to access water that irrigates our crops. Finally, globalization deserves to be mentioned as it is a process that puts significant pressure on our natural resources and agricultural industry.
