The answer would be the sandbag wall.
Stacks of sandbag will be put in front of the trench to protect the soldier. When the soldier stands inside trench all of his body is covered. But when he stands on trench board, the height increased so that the chest might be exposed. Sandbad will be helpful to stop the bullet that aimed at the chest region.
Answer:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
Answer:
no sun to power it at night
The answer is a crops. Trust me, I live on a ranch, and my family farms.