The answer is c, membrane bcs plasma memebrane is an organelle that is controlls what comes in and leaves
The nitrogen cycle is important to humans because it converts nitrogen into a form that humans can obtain by eating other organisms.
Answer:
to derive energy from the sun
Answer is basalt.
Basalt is fine grained igneous rock which contains 45 to 53% silica and 65% rich is feldspar in the form of plagioclase( silicate rock forming mineral). Feldspar is an abundant rock forming mineral. In basaltic rocks the feldspar is silica.
The basalt rocks contains pyroxene group in its minerals which gives it black color. So rocks containing many dark silicate minerals and plagioclase feldspar have basaltic composition.