Answer:
that depends on what you were testing for but is it always good for it to come up negative for any diseases
Explanation:
Answer:
World Health Organisation
Explanation:
"WHO" stands for World Health Organisation. It's an specialized agency of the U.N that is concerned with international public health.
Answer:
D hydrosphere
Explanation:
Soil erosion is the removal of the top soil layer. Soil erosion is controlled by precipitation (e.g. rainfall) and wind action. Continuous water flow on soil surface supports microorganisms to perform biogeochemical cycles. The phenonmenon is primarlity controlled governed at the iterface of geosphere (soil) and hydrosphere (water).
On the other hand, atmosphere (layers of gases), biosphere (living organisms), cryosphere (frozen water) are not directly related to soil erosion.
Answer:
boron, silicon, germanium, arsenic, antimony, and tellurium.
