What is purpasis?

Why does gold not lose its shine but other metals do? What is the best jade in the world? What is the phase of bohrium at room temperature? Can we still buy ddt powder? Explain how human activities can intensify or even cause a landslide.? What is the empirical formula for deoxyribose? Can You use Cr 2032 instead Cr 2025 batteries How Does the difference in mAh affect it? Why do planets have layers? How do you install a amp to a almera? What are the symptoms of breathing natural gas? Fertilization of an egg cells by pollen from different plant? Are Leaves serve as a the reproductive organs for many plants? What do the pollen and the egg become fertilization? What shape is dark matter? What is ment by plastids? What does the name Janvi mean? What is the chemical formula of glass rod? What is the most abundant type if immunoglobulin? What type of chemical bond does eater have? Who started meterological unit?