B. Marco Polo, I just got this answer right on my test
Answer:
C. A mudslide caused by excessive rains
Explanation:
Soil erosion is the washing away or the blowing away of the top layer of the soil due to wind or water with the motion nutrient of the soil also washed away with them. This generally occurs due to excess of deforestation or cutting down of trees.
A mudslide is caused by heavy rain fall, where the gravity of the rainfall conquers the force of soaked soil.
Answer:
The current amount of the Potassium-40 sample is approximately 37.521 grams.
Explanation:
The amount of the sample of the radioactive isotope decays exponentially in time, the amount of mass of the sample as a function of time (
), in grams, is described below:
(1)
Where:
- Initial mass, in grams.
- Time, in years.
- Time constant, in years.
The time constant can be found from half life (
), in years, described in statement:
(2)
If we know that 
, 
and 
, then the current amount of the sample is:
The current amount of the Potassium-40 sample is approximately 37.521 grams.
Answer:
species loss
Explanation:
it is because they are in least number . They can't produce their young one in large numbers so they are vanishing from planet earth.
