If you say that something is 3,000 light-years away, you are stating that
a. the object stopped producing light 3,000 years ago
b. the light that we see from the object traveled for 3,000 years before reaching our eyes
c. the object will begin emitting light in 3,000 years

How does friction with the atmosphere affect the speed of an artificial satellite

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.

The pressurized plants and fungi mentioned in the video have some surprising similarities. what differences would you expect them to have?