Answer:
A rock with a half-life of 5,280 years having 1/8th of the parent material left will be 15,840 years old.
Explanation:
The half-life of a material is the time needed for only half of the parent material to be left, while half has is gone, or rather has disintegrated. The half-life is used further into the falling apart of the parent material though, with the same principle being applied. Practically, from the 1/2 of the parent material being left, the half-life of it would mean 1/4 of the parent material being left, and from that 1/4, the half-life would be at 1/8 of the parent material being left, and so one, by simply dividing in two.
In this case, having a half-life of the rock of 5,280 years, we will simply need to add that amount of years on every next phase. So, the half-life is 5,280 when 1/ of the parent material is left. When 1/4 of the parent material will be left we will have an age of 10,560 years, while when only 1/8 is left, we will have 15,840 years of age for the rock.
You know that Cabinet X costs $10 per unit<span>, </span>requires six square feet of floor space, and hold sieght<span> cubic </span>feet<span> of files. </span>Cabinet Y costs $20 per unit<span>, </span>requires eight square feet of floor space<span>, and holds twelve cubic </span>feet<span> of files. </span>You have<span> been given $140 for this </span>purchase<span>, though </span>you<span> don't </span>have<span> to spend that much.</span>
Answer:
Population pyramid is used to show the changes taking place in demography of country.
Explanation:
- The population pyramid shows the demographic structure of a community. Births, deaths, and migration are three important components of population change that alter the trends in the population composition of a place.
- The main economic reason why the people under the age group of 50 are less likely to migrate to the community is due to they have good earnings and better standards of living.
- One social factor that can attract the migrants that are over the age of 65 is social linkages and cultural ties. The population of females that is vier 80 years of age is more in numbers due to they have better health conditions.
- The population pyramid can be used to show social welfare as it harnesses human capital over time.
The largest example of forced migration is The Expulsion Of The Germans
Solar system so that way of earth dies out we know our choices
Sun- provides life-giving light, heat, and energy to Earth; and generates space weather
It tell use how we came to be. How everything was formed.
