Iwill give which of the following takes place when a substance undergoes a chemical change? a. a change of state b. a change of matter

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

Its unlawful in the state of florida for any person to operate a motor vehicle unless each passenger of the vehicle under age of

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.