During the formation of Earth's atmosphere, one of the early atmospheres contained large amounts of water vapor and carbon dioxide. What was the Earth like as a result of this atmosphere? * helium and hydrogen gases escaped earth's gravity.
*ultraviolet light split water vapor into hydrogen and oxygen.
*Heat energy was retained and water vapor condensed.
*Increased oxygen allowed reptiles to thrive.

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

Brainliest ! is slowing down a car an example of acceleration? explain. - explain correctly