Answer:
The ozone layer absorbs a large portion of incoming UV radiation.
Explanation:
This means it keeps ground-level ozone from forming. A higher percentage of UV radiation entering the troposphere would allow a greater amount of ozone to form in the troposphere.
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Answer:
Explanation:
For plants to perform photosynthesis they require light energy from the sun, water and carbon dioxide. Water is absorbed from the soil into the cells of roots. The water passes from the root system to the xylem vessels in the stem until it reaches the leaves. Carbon dioxide is absorbed from the atmosphere through pores in the leaves called stomata. The leaves also contain chloroplasts which hold chlorophyll. The sun’s energy is captured by the chlorophyll.
The Origin of Halloween
The Celtic festival known as Samhain is believed to be the predecessor of modern Halloween. Samhain marked the end of the Celtic harvest season. It was also the start of the Celtic New Year. The date for the New Year was October 31. On this day, the Celts believed that the lines separating the living and the dead dissipated.
During this time, evil spirits were said to roam the Earth. To combat these forces, the Celts would don masks. This aspect in the history of Halloween helps explain the tradition of watching scary costumes during the festival.
Where the Name Came From
Halloween got its name from Hallowe’en. This in turn was derived from All Hallow’s Eve. During the 9th century, the church changed the date of All Saint’s Day or All Hallows’ Day from May 13 to November 1. November 2 was then declared as the day of the dead.
For this reason, October 31 became known as All Hallows’ Eve. Despite the move of the church, the festival remained very popular among the people.
Some of Africa's resources are biodiversity and good location for trading.
Explanation:
Africa is a continent that is abundant in resources. Some resources are in mineral reserves, such as gold, salt, and diamonds, while some resources are of other nature, such as the biodiversity, large and young labor force, and good location for trading. Despite being a continent that has lot of resources of all sorts, Africa in general is still underdeveloped, with the majority of the nations on it being poor. The main reason for this is mostly the bad and corrupt politics on the continent.
- The biodiversity is a resources by which Africa is known globally, and it brings in a lot of money from tourism.
- The location of Africa is excellent for trade, as it is in touching distance of Europe, surrounded by water bodies that connect it with Asia, Australia, and the Americas.
- If the potential of the continent is properly used, Africa can be become a major player on the global economic scene, though lot of work has to be done for that to be achieved.
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