The statement that best describes the use of a catalyst in a fuel cell is : ( D ) It increases reaction rate
A catalyst in a fuel cell speeds up/facilitates the rate of reaction of oxygen and hydrogen especially at the oxygen electrode of the fuel cell.
Generally catalyst is any substance that increases the rate of a chemical reaction without been used up in the process, while lowering the activation energy required to kickoff the reaction.
Hence we can conclude that the statement that best describes the use of a catalyst is that it increases the reaction rate
Learn more : brainly.com/question/3818781
The Answer is A) Nuclear power generates large amounts of power limited to projection of greenhouse gases.
I believe this is the answer. As per the reports in 1998, it has been calculated the emission of the greenhouse gas has reduced for nearly half due to the popularity in the use of nuclear power. Nuclear energy by far has the lowest impact on the environment since it does not releases any gases like carbon dioxide, methane which are largely responsible for greenhouse effect. There is no adverse effect on water, land or any habitats due to the use of it. Though some greenhouse gases are released while transporting fuel or extracting energy from uranium.
Have a great day. Keep asking questions!
Answer:
In terms of shared derived characteristics, the lophotrochozoan clade have an evolutionary novelty that is unique to it.
In terms of homology, the lophotrochozoan clade are Monophyletic, i.e they are made up of an ancestral species and all of its descendants. All are similar in characteristics resulting from a shared ancestry.
In terms of homoplasy, the lophotrochozoan clade have similar area correspondence between the parts or organs of different species acquired as the result of parallel evolution or convergence.
It is a Direct contact, droplet infection effects are when the mucosal surfaces of the eyes nose and mouth. Occurs when dental team member inhales aerosol generated by hand piece or air water syringe.