Tectonic activity that thrust mountains up from the ocean. floor because volcanoes come from the center of the earth and when the tectonic plates move it causes some of the lava from the inside of the earth to emerge and come to the surface where the ocean is and forms into an island (s).
Freezing point of the water is innate property. Therefore, I would say that the freezing point of water from 1 billion years ago would still be the same as to what temperature the water would freeze today. Thus, I choose letter D. 0°C.
These primitive plants can be found in any mouse humid environment. More specifically a forest because the like to be under the tree canopy with low light. An example of a forest you would find these in is the Olympic national forest in Washington (the pacific coast)
Single family units are more common in the suburbs and multiple housing units like apartment and condominium units are more common in the city core or at least this is the way housing is in the city of Vancouver in British Columbia, Canada.
