Which of the following is an example of an extrusive igneous rock? A. rhyolite B. granite C. andesite D. coal

What is the Yucca role

What happens when a certain number of hydrogen ions are mixed with the same number of hydroxide ions

How many moles of each element are in this sample p2o3

A liquid has a volume of 40.6 ml and a mass of 45.1 g. what is the specific gravity of the liquid

Seismic waves are recorded by a what

A 2.17 gm sample barium reacted completely with water what is the equation for the reaction how many milliliters of dry H2 evoled at 21degree celcius and 748mm of Hg?

What does it mean for data to be continuous?

When an acid reacts with a base what compounds are formed? a. a salt only. b. water only. c. a salt and water. d. metal oxides only.?

What is the differences between River system, Tributary?

having that coloration is selected for since many predators will recognize it and stay away. Therefore the common coloration is beneficial to the butterflies and becomes more common. What type of selection is involved?