the models of the solar system were the couple of planets and a very big star. AKA the sun
Answer: C
Explanation: Makes the most sense bc refraction is the bending of light
Do u mean MRNA because it helps specify amino acids sequence of the protein products
Answer:
D. marks transformation of nitrogen (N₂) from the atmosphere to ammonium (NH₄ plus) by bacteria.
Explanation:
The nitrogen cycle is a biogeochemical cycle which involves transformation of atmoshperic nitrogen into many chemical forms including nitrite (NO2), nitrates (NO3) and ammonium (NH4).
The process of nitrogen cycle starts with the process of nitrogen fixation. In this process several nitrogen fixation bacteria such as cyno bacteria converts the atmospheric nitrogen into ammonium (NH4) in the soil. The resultant ammonium (NH4) can be directly used by plants or transform into nitrites or nitrates through nitrification process.
Hence, the correct option is D.
inhalation: inhaling air (breathing in)
exhalation: exhaling air (breathing out)