In West Africa, countries have national languages that include French, Spanish, and Portuguese. Christianity and Islam are the two most widespread religions in Africa. There are an estimated 3,000 languages in 3,000 ethnic groups in Africa.
Explanation:The region of Africa where you can find countries whose national languages include French, Spanish, and Portuguese is West Africa.The two most widespread religions in Africa are Christianity and Islam.The statement that is true regarding African languages and ethnic groups is that there are an estimated 3,000 languages in 3,000 ethnic groups in Africa, which makes option C correct.The religion that swept across North Africa as a result of trade with the Middle East is Islam.The statement that is false regarding languages spoken in Africa is that German is a common language spoken in Southern and East Africa. The correct option is A.An example that is not an example of a traditional African religious practice or belief is belief in Christian principles from the Bible. Option C is correct.The largest civilization in Africa developed along the coast and river valleys of Africa.The term Islam means submission to God's will.Pre-European African society relied heavily on the use of indentured servants, who were not paid for their labor. Option A is correct.The terms tribe and ethnic group are very similar in meaning because both involve shared kinship, language, and territory. Option A is correct.Learn more about Africa here:https://brainly.com/question/19811262
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Which of the following has been proposed as a potential strategy for mitigating the increase of co2 in the atmosphere ?
- add aerosol to the atmosphere
- inject into geologic formation
- add iron to the ocean to increase phytoplankton
-shoot it into space
- all of the above
The stratospheric ozone ( o 3 ) layer helps to protect us from harmful ultraviolet radiation. it does so by absorbing ultraviolet light and falling apart into an o 2 molecule and an oxygen atom, a process known as photodissociation. o 3 (g)→ o 2 (g)+o(g)
The stratospheric ozone layer located in the earth's upper atmosphere absorbs harmful ultraviolet radiation from the sun, breaking into an O2 molecule and a single oxygen atom. This protective layer has been depleted by man-made emissions of chlorofluorocarbons (CFCs), leading to efforts to phase out such harmful substances and halt further depletion.
Explanation:The stratospheric ozone (O3) is a form of oxygen that resides in the stratosphere, a layer of the atmosphere extending from about 10 to 50 kilometers above the earth's surface. This ozone layer is essential for life on Earth as it absorbs the harmful ultraviolet radiation from the sun through a process called photodissociation. In this process, O3 absorbs UV light and breaks down into an O2 molecule and a singular oxygen atom: O3 (g) → O2 (g) + O(g).
In the 1980s, it became clear that human activities, specifically the production of chlorofluorocarbons (CFCs), were depleting this critical ozone layer. This discovery sparked international action, leading to the phase-out of CFCs in industrial applications. As a result, there has been a halt in the loss of atmospheric ozone, and the well-known "ozone hole" over the Antarctic is gradually shrinking.
Ozone's role in absorbing UV radiation is pivotal as it prevents the potential cell damage that UV light can cause on Earth. Without the ozone layer, the harmful effects of UV radiation, such as increased cases of skin cancer and other health risks, would be more prevalent.
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