<u>Answer</u>: Sustainable development
<u>Explanation</u> :
The concept of sustainable development is based on the ideas of sustainable forest management and is derived from the Brundtland Report (1987).
It is basically an organizing principle which states that the human developmental goals should be met by maintaining the stability of the natural systems so that the natural sources can be sustained for future use as well.
So,<em> sustainable development basically means that the present needs should be met without comprising the needs of future generations.</em>
SCNT stands for Somatic Cell Nuclear Transfer. It is used for creating an ovum with a donor nucleus. It can be useful in embryology and a donor nucleus.
The steps of SCNT are as following:
<span>d. Isolate donor cells from egg donor and germ cell donor
</span><span>c. Remove and discard the nucleus from the egg cell
</span><span>e. Transfer the somatic cell nucleus into the egg cell
</span><span>a. Stimulate cell division
</span><span>f. Implant embryo into a surrogate mother
</span><span>b. Deliver baby</span>
It's empty or fairly large, making the sounds from your hands bounce of the walls and therefore having it echo
I think it is to D. to explain
