Collect a secret testing sample, such as a toothbrush, hair or ear wax for one or both of the tested parties. If available, collect mouth swabs from one of the tested parties. iTest DNA will compare the DNA on these samples for paternity. Test results are not legally admissible. hope it helps !
i'm thinking (a) to keep sand in place; ////////////
explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.
allowed for the prediction of the properties of missing elements.