D.The infrastructure for using oil is already in place and there are costs associated with changing the energy infrastructure.
Explanation:
Non renewable energy sources are available in limited amount and should be used in a sustainable way. However, switching from one energy source to another needs cost intensive changes in the infrastructure. Hence, continuing the use of non-renewable energy source is recommended despite its limited supply and harmful effects on the environment.
Because our eyes see what's reflected not absorbed. Leaves contain chlorophyll which contains a pigment of green that absorbs red and blue wavelengths, while reflecting green.
The neurotransmitter in the body
which prepares it for "fight or flight" reaction is EPINEPHRINE. The
level of Epinephrine is remarkably high in patients who have anxiety-related
disorders. Also known as adrenalin or adrenaline, epinephrine is a hormone and at the same time a neurotransmitter; it is also used as medication.