Which of these statements about molecules is true? A. All molecules only contain one element B. Two or more molecules can combine to form an atom
C. the elements in a molecule are always present in equal proportions.
D. The atoms in a molecule cannot be separated from each other by physical means

Blood made up of red and white blood cells work together to form

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .