The poreosity dertimes how fast it erodes
Lets calculate the parameters of the problem. Suppose that the width is x feet. THen, the length is x+30 feet. The area of this parallelogram is given by the product of length and width, hence x(x+30). This has to be equal to 600.
Hence, x is the solution to the equation x(x+30)=600.
x*x+30x=600 hence x*x+30x-600=0. This is a second degree equation and we can calculate Δ=b*b-4ac=3300. The general solution is given by:
.
Substituting, we get that x=-30/4+
or x=-7.5+25*
. This is the width; the length is given by x+30.
The agent of erosion, which carried sediments that scratched bedrock is A MOVING GLACIER.
Agents of erosion refers to those forces that cause erosion. There are basically four agents of erosion, these are wind, running water, glaciers and gravity.
Glaciers are large sheet or block of ice that move along a landscape. Glaciers are powerful agents of erosion; moving glaciers are capable of removing loose rocks on their way of movement. They can also pick up and move particles of varying size. Moving glaciers usually carry sediments which scratch and polish bedrocks surfaces.
1. the turning of all or part of an organism in a particular direction in response to an external stimulus.
2. Phototropism is a response to the stimulus of light, whereas geotropism (also called gravitropism) is a response to the stimulus of gravity . ... when the stem grows against the force of gravity, this is known as a negative geotropism.
3. Terrestrial plants direct their root systems downwards into the soil, mainly in response to the gravity vector; however, as the roots search for water and nutrients, they frequently change direction to avoid obstacles (thigmotropism). Root hydrotropism is a mechanism found in many species to avoid water stress.
Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
