Why is the oldest seafloor less than 180 million years when the oldest continental crust is about 4 billion years old?

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

The pressurized plants and fungi mentioned in the video have some surprising similarities. what differences would you expect them to have?