It’s in the picture to at least help you out from the best of my knowledge
B. A meteor or asteroid colliding with the Earth.
The Mesozoic Era lasted for approximately 180 million years and ended at about 250 to 65 million years ago. The 'Great Extinction' happened in this era and it marked an end to almost all forms of life.
In the late 1800s, the growth of railroad led to Midwestern cities becoming industrial centers. During the industrial age, <span>a town or group of towns are primarily industrial. Works include steel-works, colliery or aircraft factory, attracting a coterie of allied and supporting trades and businesses.</span>
Answer:
Children often had to work under very dangerous conditions. They lost limbs or fingers working on high powered machinery with little training. They worked in mines with bad ventilation and developed lung diseases. Sometimes they worked around dangerous chemicals where they became sick from the fumes.
Explanation:
plz mark brainleist
Answer: Oklahoma and Nebraska
Explanation: "For starters, Nebraska, which was admitted in 1867, did have legal slavery under the provisions of the Kansas-Nebraska Act in its territorial period. And in Oklahoma (admitted 1907), some of the Indian tribes had slavery, and some even fought for the Confederacy."
