How many solar systems in our galaxy?

What makes up a complex culture? What is a storm eye? Do many metamorphic rocks have fossils in them? Wax used in wax element actuated control? What 2 elements are present in lead iodide? What is the correct order for the life cycle of s human? What happens When is a magnesium atom loses an electron in its outer energy shell? When were carbon dioxide levels as high as they are today? Is air a solvent in moist air? What is meaning for quite natural? List of countries in cold climate? What city is located 36 degrees north longitude and 111 degrees west latitude? After the process of re-absorption takes place the left over liquid is called? How do the tilt of the earth's axis and earth's movement around the sun cause season? What does ne stand for on a map? How many pages are in The Snows of Kilimanjaro? What are the numbers on a diaphragm? What organisms live in a abandoned city lot? How does the presence of a catalyst affect the enthalpy change of a reaction? How do you eliminate the chasis corrosion?