Abnormal cellular growth is caused by DNA mutations that divide in a much higher rate than normal
Largest- Oak trees Smallest- Toads
Calcium deficiency disease (hypocalcemia) --- like osteoporosis, osteopenia !!
Answer:
<h2>Secondary air pollutants are pollutants which form in the atmosphere.</h2>
Explanation:
Examples of a secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight; NO2, which is formed as NO combines with oxygen in the air; and acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water.
