Answer:
D. Uranium-238
Explanation:
Explanation: Uranium- 238 is an unstable isotope of uranium. It is one of the most effective isotope used for radioactive dating in order to determine the age of a rock that is about billions of years old.
Answer: This excerpt describes the time-zone fallout issue
Explanation: The time zone fall out issues discourages people from voting because media projects a winner before they need an opportunity to vote.
Oil, oil is used for energy but it's not renewable.
Answer:
Explanation:
Dhiki (Nepali : ढिकी [ɖʱiki]), Dhinki or ढिँकि in Odia, is a traditional Nepalese rice (millet etc.) beater used in villages. In Odia,it is called Dhinki ଢିଙ୍କି. The manual wooden thresher 'Dhiki' is made of wood and works like a lever, but is instead used for grinding. The framework consists of a fulcrum having two pillars on each side, an effort area (where one person stands on the long thick plank of wood making effort at every interval), a long and thick plank of horizontal wood which has a small vertical extension that goes into a hole made in the ground. It is in this hole that the grains or dry chillies are kept to transform them into powder. the person using this usually places his/her leg on one side and press it hard and then leave it so that the other part hits the rice, millet, etc. and grinds it. It works like the see-saw i.e. when one part's up the other one's down and vice versa. It is a local technology used in nepali villages. When, rice mill was not used, this Dhinki used to dehusk the rice, make various powders like rice powder, masala powder etc. The dehusked rice was very healthy as it was not polished. The device required two persons. One to push the log upward by foot pressing of the lever downward and the second person rotate the rice load for uniform pounding.
