Answer:
Accelerated erosion or change in cover tend to persist and grow over time because the continuous erosion of the channel further escalate the rate of erosion by further widening of the channel unless there is a human intervention to stop this. Once the vegetative cover of a soil is altered, it leaves room for erosion (the degree of the erosion depends on the degree of loss or gain of vegetative cover). In a bad case where there is a loss of vegetative covering of the soil, erosion sets in, washing away the top soil and reducing the cover vegetation even more. These two activities are those type of activities that grows over time once they are activated.
Kidneys<span> filter the extra water and toxic materials in your blood (circulatory </span>system<span>). The help </span>maintain homeostasis<span> by keeping the level of toxic materials down in your</span>body<span>. The filtered materials are sent, with the extra water, to your bladder , where it is known as urine/ pee.</span>
Br2 because it is non polar and so is CCl4 and like molecules dissolve like molecules therefore Br2 will dissolve in CCl4
Answer:
The proportion of dissolved substances in seawater is usually expressed in ppm, ppb or ppt
Explanation:
The concentration of very diluted solutions should be expressed in parts per million, billion or trillion.
ppm = mass from the solute . 10⁶ / mass or volume of the solution
ppb = mass from the solute . 10⁹ / mass or volume of the solution
ppt = mass from the solute . 10¹² / mass or volume of the solution
ppm = mg/kg, μg/g, μg/mL → These are the units
ppb = ng/g
ppt = pg/g
