Pupils dilate and constrict in order to allow an adequate amount of light to pass through the retina and vision. If there is not enough light and the pupils do not dilate, a small amount of light will pass to the retina and the vision will be damaged.
Isotopes of an element will contain the same number of protons and electrons but will differ in the number of neutrons they contain. In other words, isotopes have the same atomic number because they are the same element but have a different atomic mass because they contain a different number of neutrons
Driving a motor........
chemical energy is converted into kinetic energy.
Falling off of cliff
.........gravitational potential energy is converted into kinetic energy.
Hydroelectric energy generation
.......gravitational potential energy is converted into kinetic energy (i.e. driving a generator), which is then converted into electrical energy.
Nuclear power generation
.........mass is converted into energy, which then drives a steam turbine, which is then converted into electrical energy.
Answer:
.b.Be faster, less power consuming than silicon and much thinner
Explanation:
Graphene has a <em>very high electrical conductivity</em> due to its pi orbitals overlap that enhance the carbon to carbon bonds. This means that a nanoelectronic devise that uses graphene will be faster and will consume less powe and it will be thinner because graphenes have a <em>size of 0.345Nm.</em>
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