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.
By Kathleen Mierzejewski. When you have plants, whether indoor or outdoor, the leaves can suddenly start turning yellow. Yellowing leaves on your plants may point to something being wrong with your plants. Why plant leaves turn yellow is a tricky question.There are plenty of reasons that might cause yellow leaves on your plants.hlorosis â The reason why leaves are turning yellow could be an abnormal condition called chlorosis. Chlorosis is when the yellow leaves are missing the green pigment called chlorophyll. There are specific causes why plant leaves turn yellow due to chlorosis.