Iron oxide reacts with aluminum to give aluminum oxide and iron. what kind of chemical reaction is this?
a)combustion
b)decomposition
c)replacement
d)synthesis

Aflower pot weighing 3 newtons is sitting on a windowsill 30 meters from the ground is the energy of the flower pot potential or kinetic? how many joules is this

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

How is the gravitational force related to the distance between two objects?