Answer:
B. one fourth of the original substance
Explanation:
a substance's half life is how long it takes for half of the atoms in the substance to chemically decompose. once it's half life has been completed, it will start again with the remaining material. after 6000 years, only half of the material will remain, after 12,000 years a quarter wil remain, after 18,000 years an eighth will remain, etc.
Answer:
Two women can be selected from 29 in 29C2 ways.
Explanation:
plato
They refract due to the different densitys outer core effects s waves because they cannot pass through liquid
Answer:
Yes , I agree
Explanation:
Areas near sea level enjoys moderate temperature whereas, areas situated far have higher temperature.
This is because;
1. Water have high heat capacity than the soil and this make it to take long time to heat up and cool which make areas near it have moderate temperature and transfer of cook air.
2. Air that is around areas near water will be much cooler from transfer of energy between water and air, while air that circulate above areas far from water will heat up much more quickly. Therefore, areas near water have more moderate temperature because water is nearby to regulate the temperature and keep it more constant.