The constant buckling and moving of the planet's tectonic plates can account for the presence of marine fossils on mountain tops.
Answer: Cloud at medium altitudes are:
A: They are made of ice crystals.
Explanation: Mid level cloud forms ice crystals when the temperature is cold.
Christianity spread to as many, and actually more, countries than Islam, think for example of Latin America, which is predominantly Catholic!
Also, it it the world's biggest religion, and it has about 0.5 billion more followers than Islam. Therefore the false option is the last one: D.
She can conclude that star B is brighter than Star A. The measurements prove that star B is twice as far away as star A, yet both of the stars show the same amount of light.