I believe one of them is Indonesia?
The elements listed in the choices are radioactive materials. These materials are very unstable because of the high neutron-to-proton ratio in the nucleus. Because of this, they spontaneously undergo nuclear reactions by giving off sub-particles in order to lower the ratio. They emit radiation in the form of alpha, beta or gamma.
Half-life is the length of time it needs to completely react half of the original amount. For example, it would take Bismuth 60.5 seconds to use up half of its amount. Therefore, the lower the half-life the faster the reaction is and the lesser the residual amount will be. With that being said, the answer would be Bismuth because it only takes seconds.
The order of these periods is the Cretaceous period, Jurassic period, Triassic period, Devonian period, and Cambrian period.
The phrase "Cuddly Old Sheep Dogs Make Perfect Pets; They Just Crowd People Nearby Quietly" is one technique used to organize geological periods. In this phrase, the first letter of each word represents a period.
For example:
- Old starts with "o" and represents the Ordovician period
- Quietly starts with "q" and represents the Quaternary period
- Make starts with "m" and represents the Mississippian period
In this context, the order of the given periods from the most recent to the oldest one is:
- The Cretaceous period "crowd"
- The Jurassic period "just"
- The Triassic period "they"
- The Devonian period "dogs"
- The Cambrian period "cuddly"
Learn more in: brainly.com/question/7277813
Answer:
During the 1960's the disclosure of enormous gas and oil fields in Alaska accelerated the change of most coal framework to other petroleum products. During this period Usibelli Coal Mine bought the Suntrana mine and the mining activities in the Matanuska coal fields stopped activity.
The Chinese have had restrictions in the amount of children that a family can have, for few decades it was one child, now it is two. Even thought the limit is increased to two children per family, it is a number that will allow the nation to keep it's population on a status quo level.
India, has it worst, the government has not been able to make a solid plan that can be implemented, the wast majority of the population is uneducated, and there's still the pride in having more children, so the population is still growing very fast.
The Kenyan government made a long term development plan, which as a main goal has to achieve a high quality life for all Kenyans that is sustainable with available resources. Also contraceptive coverage, and educating the population with videos, presentations, talks.
