Why did hurricane Harvey happen?

Does the chemical structure of a compound affect properties such as strength of attraction to other molecules? How heavy is a glaive? What does depletion of the ozone layer mean? What star near Earth? What is the order smallest to largest of a mountain mountain system mountain range mountain belt mountain? How do you work out the difference from 157.6 pound to 157.2 pound? Where is the hurricane irine? Where can one find more information about sandstorm videos? In what way does water enter the atmosphere in the water cycle? Does calcite show a double image? How many molecules of carbon dioxide are used to produce one 6 carbon sugar molecule? Show Potential energy curve for bonding and antibonding molecular orbitals? What are the differences between population density and population denseness? What type of hormone reduces inflammation? How can a Burmese python effect the ecosystem? Why is stones important to an ecosystem? What percentage of soy is typically fed to livestock? What occurs in the liquid part of the mitochondria? Describe what happens in the three different kinds of plate collisions? What is the process in which oxygen increases and carbon dioxide decreases in plants?