Scientists have found many marine fossils on mountains far from any ocean or sea. what is the best explanation for these fossils? sc.7.e.6.4 (1 point) meteors with marine fossils landed on the mountains. wind carried fossils from the seashore to the mountains. the mountains were made out of land that was once below the ocean. predators caught marine prey and carried it to the top of the mountains.

C. The mountains were made out of land that was once below the ocean.

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

→

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"