How is carbon being transferred at label B? A. Humans are extracting carbon from fossil fuels.
B. Carbon from organisms is released into the soil.
C. Marine animals are creating carbon through the process of cellular
respiration
D. Terrestrial organisms are using carbon and producing energy from
photosynthesis.

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa