It can tell you if a solution is basic, acidic, or neautral.
pH of 0-6= acidic
pH of 7= neautral
pH of 8-14= basic (or alkaline)
it is built on years and years of scientists figuring things out, countless expirments, inventions. etc.
hope this helps.
Answer:
Predatory interaction and competitive interactions
Explanation:
The negative relationships of the great white shark includes-
Predation between the great white sharks and the seal... the great white shark here is a predator and it feeds on the seals and other marine animals.
Interspecific competition between the Killer whales and the great white sharks: Orcas, also known as killer whales like to eat seals too and they live in the same areas as great white sharks.
Answer:
When your feet are on the ground, the force of gravity 'grounds' you by pushing you towards the ground - extrapolated toward the center of the earth. There is an equal opposite force being applied by the ground through your body, equal to the force of gravity. Remember for every action force there is a reaction force. This is what is perceived as weight by the brain.
However, when you are in a free fall, your feet are not grounded. You are accelerating towards the earth due to gravity and there is no equal opposite force by the ground, or any other support, that would be acting against gravity. Your brain perceives this as weightlessness.
I think the correct answer from the choices listed above is the last option. The activity that led to the formation of the Grand Canyon would be erosion. <span>The most powerful force to form the </span>Grand Canyon<span> is erosion, primarily by water (</span><span>and ice) and second by wind.</span>