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.
Perseid meteor shower August, 2016: Peak viewing times, best places, NASA tips for August. The Perseid meteor shower is here again, and the 2016 cosmic display may be one of the best shows in recent history, according to NASA. The best time to set up outside for the Perseid shower 2016 will be the nights of August 11 and 12, when the bright meteor shower will be at its peak. Although stargazers might spot a few shooting stars after sunset, the best time to watch is between 10 p.m. and the early morning.