Answer: 3. The half- life of the isotope must be long enough to capture the age of the rock. and
4. their should be more than one unstable isotope.
In radioactive dating proces, the parent isotope is in unstable state which undergoes decay process to give stable daughter isotopes. Half-life is the amount of time it takes for half of the parent isotopes to decay. The rock dating requires a long lived parent isotope so that it can capture the exact rock age.
One rock when get decayed in the daughter isotope other will be available identify the age.
Answer: clustered population distribution
Explanation:
Weather not climate, climate within a period of time referred to such winters,autumn but weather such as sunny,stormy..
Answer:
A. Total Vit D intake = 1150000212 IU
B. Yes he met his RDA and does not need any supplements
C. 191666702%
Explanation:
I μg = 40 IU
1 oz = 28.35 g
I g = 1000000 μg
A. Low-fat Yoplait yogurt-2 μg = 2 * 40 IU = 80 IU
Cheerios cereal-1 μg = 40 1U
Coffee with milk-07μg = 0.7 * 40 = 28 IU
Turkey sandwich on whole-wheat bread with large garden salad-0.4 g = 0.4 * 1000000 * 40 IU = 16000000 IU Grilledd pork chop. 8 oz = 28.35 * 1000000 * 40 = 1134000000 IU
mashed potato and a side of gnled mixed vegetables-1.6 μg = 1.6 * 40 = 64 IU
Total vitamin D intake = 1150000212 IU of Vit D.
B. Since his RDA is 600 IU, he met his RDA and does not need any supplements of Vit D.
C. Percentage of his RDA Vit D intake = (1150000212/600) * 100% = 191666702 %
The indentation on the medial surface of each lung through which
pulmonary and systemic blood vessels, bronchi, lymphatic vessels, and
nerves enter and
leave is called the hilum
