In the last 100 years, which of the following have added excess carbon dioxide to the atmosphere?

a. power plants

b. machinery

c. cars

d. All of the above

Which compound is also a carbohydrate? A) enzyme B) lipid C) salt D) starch

The small circles represent molecules of oxygen. What will eventually happen to the oxygen molecules when they are in a higher concentration outside the cell? A.

The avrage year after year conditions in an aria is called?

If all carbon dioxide disappeared from the biosphere, which organism would first experience negative biological effects

List 4 pathogenic viruses and the diseases they cause in human.

What mineral is used as a coating for steel?

How do earthquakes at divergent plate boundaries differ from those at convergent plate boundaries? Earthquakes at divergent boundaries are deeper and more severe. Earthquakes at divergent boundaries are almost always larger.

Salvador would like to take a paternity test to determine if he is Pilar's father. He asks Pilar's mother, Antonia, to provide DNA samples for both her and Pilar. Which technique will most likely be used to compare the three DNA samples?

What is not a a form of passive transport

12. When a plant grows on the shade