Sink holes and crevasses might be a result of this <span />
Answer:
Production of nitrogen oxides is the event which occurs first in the formation of photochemical smog.
Explanation:
Photochemical smog is a type of smog which occurs when volatile gases such as nitrogen oxide react with the sunlight in the atmosphere. Due to this reaction, smog is formed which is brown in color. This nitrogen oxide gas is produced when the fossil fuel burns in the engines of vehicles. Nitrogen oxide is volatile gas which means it directly goes in the atmosphere and contribute in air pollution and global warming.
Because endocrine signals are broadcast throughout the body, alls cells will respond to the hormonal signal..
B. False
Aggregates of mineral form rock
