2. Paraffin and gasoline are both hydrocarbons, and therefore have the same general chemical formula CnHn+2. As such, paraffin and gasoline are similar in that both do
not contain oxygen. Compare the use of gasoline (which would be similar to
paraffin) versus ethanol as a fuel, considering that gasoline is a hydrocarbon
whereas ethanol also contains oxygen. Compare the use of gasoline versus ethanol
as a fuel, from the standpoint of efficiency, by comparing the amount of energy that
each contains on a per amount of fuel basis.

The length of a vector arrow represents its magnitude and the point represents its direction true or false apex

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give