Steam locomotive im pretty sure but i could be wrong
Answer:
Without bees, they would set fewer seeds and would have lower reproductive success. This too would alter ecosystems
.Explanation:
If all of the world's bees died off, there would be major rippling effects throughout ecosystems. ... Other plants may utilize a variety of pollinators, but many are most successfully pollinated by bees.
I think is between d or a
Answer:
This helps people find shelter,food and important devices to help them live
Explanation:
I would think either the Indians or cavemen