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lukranit [14]
3 years ago
10

7) How might fracking affect you, both positively and negatively?

Biology
1 answer:
Lena [83]3 years ago
3 0

Explanation:

Positive;

Fracking is a cheap and efficient method of extracting natural gas and oil from the deep crust. Therefore this makes petroleum products cheaper and therefore is good for a petroleum energy-dependent economy since the prices of goods and services will be affordable.

Negative;

However, fracking has been shown to have negative environmental impact. There are concerns that the process causes contamination of groundwater which therefore makes it unsafe to utilize by humans and also for the ecosystems.

Learn More:

For more on fracking check out;

brainly.com/question/535371

brainly.com/question/14136511

#LearnWithBrainly

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Initially, little was known about how AIDS was transmitted, and even less was known about the virus that caused it. In 1985, the virus itself was isolated. Following this discovery, Margaret Heckler, the US Human Services Secretary at that time, famously declared, "We hope to have a vaccine [against AIDS] ready for testing in about two years."

Vaccines have worked well against once widespread diseases like smallpox and polio. After the AIDS virus was found, many people, including many scientists, thought AIDS would be added to the list. Vaccines mimic natural infections, during which the body produces antibodies that kill the virus. But unlike smallpox or polio, HIV doesn’t stimulate this kind of response – our immune systems are generally blind to the virus and unable to launch an effective antibody attack. Other challenges that scientists face as they try to create a vaccine include a lack of good animal models to study and the virus's ability to constantly change and mutate. Additionally, although controllers can keep levels of the virus low, no one has ever fully recovered from HIV infection. This means there's no natural, winning strategy for scientists to study and try to elicit.

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But this summer, scientists discovered three powerful antibodies against HIV and efforts are now underway to transform this discovery into treatment.

In addition to approaches that try to stimulate antibody immunity, researchers are also looking for ways to stimulate cellular immunity, or activate the other weapons in the immune system’s arsenal, like macrophages, natural killer cells, T cells, and more. Alerting the body’s immune system to HIV’s invasion may not prevent infection, but it could inhibit the disease’s progression and keep viral populations so low that there might be less risk of transmission.

One vaccine developed using this approach failed in trials, appearing to even increase some participants' susceptibility to the virus. But knowledge of what happened in that trial may help scientists create a more effective vaccine that targets cellular immunity

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Explanation:

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