Choose the date that scientists think the universe began! (The other three dates are the appearance of humans, the origin of life, and the creation of the earth. Don't pick A.4.6 billion years ago

B2.5 billion years ago

C3.5 million years ago

D13.7 billion years ago

What school are you from and what state are you from?

Based on what you know about speed of light and sound, which come/comes first in a thunderstorm

Afarmer who is grown corn for the past five years notices in the sixth year that the his harvest is significantly smaller, despite an increase in labor on the farm. the following year, the harvest continue to decline. which of the following explanations most plausibly accounts for the reduction in corn yield? a) soil degradation b) desalinization c) better irrigationd) terracing