Answer: The right answer is Cave-ins.
Explanation: Excavations and trenches are basically the man-made cuts inside the Earth's surface. These are made for multiple purposes such as mining or tunneling. One of the obvious risk while working in such excavations and trenches is cave-ins. It is basically collapse of that excavation or Trench. The roof of the mine collapses and people working under it get buried inside those excavations in trenches.
To treat muscle cramps, it is important to relax the muscle. Stop any activity and stretch gently the muscles and to hydrate your body. Also, if muscle cramps is a regular occurrence then it is recommended to add more magnesium in the diet. <span />
Answer:
due to human are using resources faster than they can be renewed replace and clean up.
