Answer:
Solar Energy
Explanation:
The table is about renewable and non renewable natural resources which may or may not pollute the environment. Natural gas and wind are the renewable energy resources which do not adversely affect the environment. Coal is non renewable energy resource that release harmful gases into the air upon burning. Solar energy is another example of renewable resource that do not pollute the environment.
Answer:
Rana y elefante marino guala☺☺☺☺☺☺☺☺☺☺☺
Explanation:
kndjd
Answer:
Spread
Explanation:
People use envelopes very often. The germs people carry are put into the envelope and then it's sent out to many others.
It doesn't show the choices but, Biostimulation<span> involves the modification of the environment to stimulate existing bacteria capable of bioremediation. </span>
Excitation-contraction coupling refers to the series of events that begins with the excitation of the sarcolemma in response to stimulation by a neurotransmitter, and results in the release of calcium ions from the sarcoplasmic reticulum.
Hence, option D is the 1st process that starts the excitation-contraction coupling.
