Remote sensing allows us to do which of the following? determine what the weather is like in remote locations such as in the middle of the ocean locate and examine some natural disasters study drought conditions in different parts of the world without the need to travel to remote locations all of the above.

As a part of an experiment a student burns propane to produce carbon dioxide and water she remembers that she must follow the law conservation of matter when writing a balanced chemical equation which of these equation adheres to the law of conservation of matter

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.