The earlier years of the middle ages began with the fall of the western roman empire.
Answer:
B
Explanation:
Two Houston surgeons, Michael E. DeBakey and Denton Cooley, have been in the forefront in developing heart surgery and heart transplantation. DeBakey and his team performed the first successful coronary artery bypass graft procedure on November 23, 1964.
Answer:
memorials - monuments built to honor
burial sites - tombs or resting places
religious sites - places of worship
It was "c. President Roosevelt" who <span>made major contributions to environmental protection in the early 1900s, and it should be noted that this was Theodore Roosevelt--not his cousin Franklin. </span>