To protect themselves, what compound can plants produce?
a. salicylic
b. acetic acid
c. water
d. carbon dioxide

Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other

Which material burns faster? metal aluminum

What is a number added in front of a formula in order to balance the equation