History of Solar System formation and evolution hypotheses - Lunar origins hypotheses. 1  Over the centuries, many scientific hypotheses have been advanced concerning the origin of Earth's Moon.
Regular irrigation keeps grass green. Improper fertilizing, nutrient deficiencies, diseases and insects can all cause yellow grass. No matter the cause, yellow grass detracts from your home's appearance. Identifying and correcting the issue is essential to restoring your lawn's health and appearance any time of year.
Reasons Gardenia Leaves Turn Yellow. The first thing you should do if your gardenia's leaves begin to yellow is have some of the plant's soil tested at your local nursery. This will reveal any possible nutritional deficiencies that could cause this problem. Here are some of the most common reasons for the yellowing.