Hydrosphere
What is the percentage of saltwater on Earth?
97%
What is a convergent boundary?
Two or more tectonic plates collide
What is the Law of Superposition?
If undisturbed, younger rock layers will be on top of older ones
What is the pH range?
1-14
What are the three main layers of the ocean?
Mesopelagic, Bathyal, Abyssal
What is the percentage of freshwater on Earth?
3%
What is a divergent boundary?
Two tectonic plates move away from each other
What is an intrusion?
igneous rock is forced in between or through existing formations without reaching the surface
What is the formula for Nitrites?
NO2-
Which ocean zone has the most sunlight?
Euphotic
What is the percentage of freshwater that is ice?
69%
What is a transform boundary?
Two tectonic plates slide past each other
If rock layer M is on top of layer N and K, which layer is the youngest?
Layer M
What is the formula for Nitrates?
NO3-
What is between the continental shelf and the continental rise?
The continental slope
What percent of freshwater is ground water?
30%
What boundary results in a fault?
Transform boundary
If rock layers go from oldest to youngest and there is an intrusion(K) that passes through all of them, which is the youngest layer in the sequence J, M, L?
Intrusion K
What is the formula for Ammonia?
NH3
What is the intertidal zone?
ocean meets the land between high and low tides
What are the 2 main sources of water for humans?
surface water and ground water
What is subduction?
One tectonic plate slides under another at a convergent boundary
What is an extrusion?
Magma forces itself through cracks in Earth's surface
What is neutral pH, most acidic, and most basic?
7, 0, 14
What is the deepest zone that sunlight can penetrate?
The Photic zone