Answer:
Radioactive isotopes are unstable and will decay. ... The isotopes will decay into a stable isotope over time. Scientists can tell how old the rock was from looking at the radioactive isotope's half-life, which tells them how long it would take for there to be half the radioactive isotope and half the stable isotope.
Answer and Explanation:
Sustainability is feasible with enhancements in innovation. Current advances make it conceivable to run feasible businesses, yet these are monetarily unfeasible because of our enormous vitality needs.The proficiency of current innovations in changing over vitality to progressively usable structures for example sun powered, wind,tidal and so forth are likewise low, mostly because of innovative boundaries, making huge scale maintainability unachievable,despite the accessibility of enough crude vitality to suit human needs. Consequently, we have the crude vitality lying around, we should simply change over it to a usable structure. Therefore, levels of progress at littler scales just as the nearness of crude vitality for enormous scale support ability are two reasons why manageability is reachable
As referenced above,the primary hindrance to accomplishing supportability is an absence of innovation to understand this. Another significant obstruction is the tremendous populace. A higher populace requests higher vitality, consequently, considerably more vitality should be delivered. At lower levels, manageability is all the more effectively come to even with our current innovative head ways. With a lower populace, while we may not accomplish manageability completely, we could at present bear to utilize assets in a progressively controlled way, and not deplete our current stores at a disturbing rate while we anticipate advancements in economical innovations.
One more boundary is our monetary framework which rewards snappy and quick generation over maintainable development, in this manner organizations will in general center around amplifying benefits instead of accomplishing supportability.
Option D is the correct answer
All of the above
A river slope, volume of flow and shape of its streambed affects the load that a river carries. When a river has a steep slope, its velocity increases and with the increasing velocity rivers load carrying capacity increases. The volume of flow is the amount of water flowing in the river. Thus the larger the volume of flow, the higher is the speed of the river and the higher the speed the larger is the sediment quantity in the flow volume
In a streamlined channel of river, the factor of friction reduces. These friction factors usually reduce the speed of the flow. Now since, the factors are reduced, rivers’ speed increases and thus the quantum of load also increase.
Because Nepalese people follow different religions such as Hinduism, Buddhism, Islam, Christianity, Kirant e.t.c.nepalese people speak different languages, eat varieties of food, wear different dress and celebrate different festivals
