Currently, fossil fuels are one of the world’s primary energy sources. The graph shows the amount of carbon that has been released in the atmosphere since 1900 due to the burning of fossil fuels.

What is the type of the reaction below? bacl2 + h2so4 → 2 hci + baso4 double replacement synthesis single replacement decomposition

Determine the maximum r-value of the polar equation r =3+3 cos 0

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve