If you have 85 grams of isotope H-19, which has a have life of 15,000 years. How many years has passed after 5 have lives? How much parent isotope remains after 2 half lives? How many daughter isotopes have been created?.

idk

Explanation:

idk

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation:

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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