Question

Radioactive Sr-90 can enter and accumulate in the human body through _______.
a) breathing in contaminated air
b) Drinking water
c)Soil
d)Food chain

Answer 1

Strontium (synthetic image Sr) is a shiny metal that quickly turns yellowish in air. Normally happening strontium isn't radioactive. The most everyday person made a radioactive type of strontium will be strontium-90 (Sr-90) that passes from one organism to another.

Complete answer:
Strontium-90 is generally scattered in the earth and the natural way of life from environmental testing of atomic weapons during the 1950s and 1960s. Radioactive decay helps radioactive decay. The measure in which a shaky (radioactive) core produces radiation and changes to a more steady isotope or component. is the main method of diminishing the measure of Sr-90 in the earth. It has been gradually rotting from that point forward, current levels from these tests are exceptionally low.
Plants or harvests developing in or close to sullied soil may take up modest quantities of Sr-90 from the dirt. Creatures may ingest Sr-90 when eating plants.

Additional Information: Strontium-90 is delivered economically through atomic parting Help parting. The parting of a nuclear core into in any event two other cores with the arrival of a generally huge measure of energy. Fissioning that happens with no external reason is designated "unconstrained splitting." for use in medication and industry. It likewise is found in the earth from atomic testing that happened during the 1950s and 1960s too in atomic reactor squander.

So the correct answer is 'Food chain'.

Note: Strontium-90 can be breathed in, however, ingestion in food and water is the best wellbeing concern. Once in the body, Sr-90 acts like calcium and is promptly fused into bones and teeth, where it can cause diseases of the bone, bone marrow, and delicate tissues around the bone. Since Sr-90 acts like calcium, milk observing will be significant after an enormous delivery.