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This is bio not sst lol
Ok the ans is bcs crust is hot type stuff while a metal is a slippery thing so when a magma gets in to a slippery stuff fst it will float then it will smash the metal
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The complement system, also known as complement cascade, is a part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promote inflammation, and attack the pathogen's cell membrane during phagocytosis
Half life is the amount of time for one half of an isotope decay. Strontium-90 under goes a beta decay, which means that it will lose an electron forcing a neutron to turn into a proton. This decay process on Strontium-90 makes it have a half life of 28.8 days.
This must be a Choice question but the choices are not there so the only thing I can do is send you the four major ones and you can pick which one is not the major one for your question hope this helps don't worry about sending points I don't work care about him
What are the four major points of Darwin's theory of natural selection?
1. Overproduction - more offspring are born than survive
2. Genetic Variation - there is variation in the population
3. Struggle to Survive - organisms with suitable variations will survive and reproduce
4. Differential Reproduction - suitable variations are passed on to offspring
