Pierakstīties
Essential Biochemistry - Environmental Biochemistry (Section 1 - No. 21)
What is a major source of air pollution?
Automobiles
Agriculture
Rain
Forest
Paskaidrojums
Automobiles are a major source of air pollution due to their emissions.
komentāri (0)
Piesakieties, lai komentētu
Reklāma
Ļaujiet javascript pareizi ielādēt šo lapu
