Which part of a bone such as the femur enables the bone to get longer? a. the growth plate b. the bone marrow c. the compact bone tissue d. the spongy bone tissue

Answer;
The growth plate.
 It is the part of a bone such as the femur enables the bone to get longer

Explanation;
The growth plate is also known as the epiphyseal plate or physis.
It is the area of growing tissue near the end of the long bones such as the bones of the arm and legs, in children and adolescents. 
It determines the future length and shape of the mature bone.
Each long bones has at least two growth plates, one at each end. 

1) the mayans built pyramids just like the egyptians. the mayans also used hieroglyphics like them.2) power was passed down by family. for example, if the father dies, the son would be the next king.3)they both built pyramids for their structures.4)the main crop for the mayans was maize.5)they also grew manioc, beans,  squash,  amaranth, and chile peppers.

Answer : romans built laws to manage the pollution which was lead by smoke produced by the factories.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.