4. How do minerals become part of the soil? A. Minerals must be added to the soil by man.
B. Minerals come from rocks.
C. Minerals come from decayed matter that was once alive

An alpha particle is: a hydrogen atom a nucleus of helium two neutrons an electron

Which statement explains which component is likely to be more powerful in explaining a scientific phenomenon? a) component c, because a theory is often passed on possibility and not certainty b) component d, because a hypothesis is often based on possibility not certainty c) component c, because the ability to explain several occurrences in the natural world is a characteristic of a hypothesis d) component d, because the ability to explain several occurrences in the natural world is a characteristic of a theory

Among the elements of the main group the first ionization energy increases