In the middle of the 19th century political philosopher.

Of the 168 hours in a week as a full time student you should spend how many hours per week on school work?

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.

Balanced rock sits on a thin spike of rock in a canyon what forces keep the rock balanced on its tiny pedestal