Opposing pairs of muscles involved in moment are called?
a) tendons and ligaments
b)flexors and extensors
c) smooth and striated muscles
d) skeletal and cardiac muscles

When water freezes, it . contracts expands

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation

What is the difference between a meteoroid and a meteor?