Answer:
B: A speech is meant to be delivered out loud; an essay is usually read silently
Explanation:
Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the world. The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE.
Runs out of its other food from the sun
A tragic flaw is a character trait that causes the downfall of the hero. In Macbeth, his tragic flaw is his own ambition. He plans to murder the king and his own guilt haunts him.