Answer:
These fuels are very efficient, it means that fossil fuel sources (oil, natural gas and coal) have high energy conversion rates, thereby they enable to generate important amounts of energy.
Explanation:
It has been shown that the overall efficiency of the conversion of fossil fuels to electricity is approximately 40%, while 60% of the energy produced is wasted during the process of combustion. However, it is important to note that the efficiency of renewable energies (i.e., geothermal, solar, hydroelectricity, wind and biomass) have been considerably increased in the last years.
D because the article says the were departed by the canyon
Answer:
The correct answer is "body is healed from the illness", "symptoms of the illness are managed" and "body builds immunity to illness".
Explanation:
Depending on the type of the medicine, the body can respond by different ways. The body can be healed from the illness, for instance, when antibiotics are applied the substances act on the pathogen that causes the illness. The symptoms of the illness can be managed by the use of Symptomatic Drugs, which are often prescribed when the source of the disease cannot be treated or is preferred not to do it. The body can build immunity to illness, particularly when the medicine is a vaccine.