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.
Chlorosis 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.f you have houseplants that have yellow leaves, check the soil in the pot to see if it is dry. If you find this is why leaves are turning yellow, simply water the plant and consider leaving the pot to sit in a dish to catch overflow and allow the roots to absorb the extra water when needed. Advertisement.