<span>There are other avenues to find the cure to diseases that do not involve exploiting fetuses.
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Answer and Explanation: When Sedimentary rocks are heated with lot's of heat and pressure, they will melt and be back again to magma. After a while it would cool and also get harden and will become Igneous rocks.
The alveoli are surrounded by tiny blood vessels, called capillaries carrying blood to and from the heart.
