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.
In fact, there are ways to prevent grass burns from dog urine.While nitrogen is an essential component in healthy soil, high concentrations of it can cause grass to turn yellow or brown. Urine is naturally high in nitrogen and alone can cause grass burns.