Which two types of evidence led from the theory of continental drift to the theory of plate tectonics?

1. World maps in 1858 showed how Africa and South America fit together.
2. Oceanographers' maps revealed mid-ocean ridges and oceanic trenches.
3. Fossils discovered in the 1830s showed that Earth had grown warmer over
time.
4. Seismic data helped scientists identify the boundaries of tectonic plates.

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature

Why do the strengths of london (dispersion) forces generally increase with increasing molecular size? choose one: a. heavier atoms have stronger attractions for each other than lighter atoms. b. dispersion forces are all equal in magnitude; there is no size dependence. c. dispersion forces arise from the attraction between the nuclei of atoms, and larger molecules have larger nuclei. d. dispersion forces arise from dipoles caused by the electron distribution being distorted. larger molecules have more electrons and, therefore, more distortions and a bigger force. e. dispersion forces depend on distance. larger molecules are farther apart and so the forces are smaller.