Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and standard deviation 1

The graph shows a trend in an ecosystem over time caused by increased pollution in the region. what can you conclude from the graph? a. there’s lower biodiversity among birds. b. there’s a higher reproductive rate among birds. c. there’s a significant decline in the number of producers. d. other types of animals were unaffected by pollution.

When do you think it’s best to take the psat (what grade year / when in the year)?

How are brightness and size related when it comes to stars