Photosynthesis: Chemical process by which plants containing chlorophyll use sunlight to manufacture their own food by converting carbon dioxide and water to carbohydrates, releasing oxygen as a by-product. Respiration: The process in which oxygen is used to break down organic compounds into carbon dioxide and water.
The Perseid meteor shower, one of the brighter meteor showers of the year, occurs every year between July 17 and August 24. The shower tends to peak around August 9-13. The best time to view the Perseids, and most other meteor showers, is when the sky is the darkest.
Perseids could provide a good show in the skies. Posted: 08/11/2016 - The Perseids Meteor Shower could provide quite the show in the sky late Thursday night and Friday Morning. Astronomers say there could be up to 200 meteors an hour in perfect conditions.