Surface mining for coal involves removing all the vegetation and rock above the coal being mined. Which
two of Earth's subsystems are MOST immediately
affected by surface mining?

A. Lithosphere and atmosphere

B. Biosphere and hydrosphere

C. Lithosphere and biosphere

D. Atmosphere and hydrosphere

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

What is the standard unit of measure for acceleration?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.