Earth's Atmosphere
Completion requirements
Pori drwy'r eirfa gan ddefnyddio'r mynegai hwn
Arbennig | A | B | C | CH | D | DD | E | F | FF | G | NG | H | I | L | LL | M | N | O | P | PH | R | RH | S | T | TH | U | W | Y | Y CYFAN
P
Particulate matter(PM) — tiny solid or liquid particles suspended in the air. | |
Photosynthesisthe process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen. | |