You have the crust then you have mantle thenyou have the outer core then you have the inner core
<em>Please</em><em> make</em><em> me</em><em> as</em><em> brainlist</em>
<em>Capillary action is defined as the spontaneous flow of a liquid into a narrow tube or porous material. </em>
Through weathering and the erosion of rocks and soil, Earth’s landscape can change drastically overtime. As a result, watersheds may disappear if the land making the watershed is worn away, and the water collected is <span>able to flow back into the river, as the area is level with the rest of the land.</span>
Answer:
That is administered and controlled
Step-by-step explanation:
A variable is the condition or a product that may vary without the influence of any investigator. Such variables can be found abundantly in our daily lives, ranging from air to sunlight. Controlling such variables ensures the limitation of their influence on the outcome of an experiment. In connection to this experiment, the variables that are controlled are the mineral content in the water, the amount of bacteria food, the amount of light and the the constant temperature of 20 degrees C.
If not administered or these variables controlled, the experiment would not clearly explain the impact of caffeine on the heart beat of the water fleas as other variables may have influenced it. Thus variables are controlled to study the singular impact of any agent or effect.
Climate, Land form/shape and fossils(he was most interested in this)
