Atoms that are unstable undergo radioactive decay,
Elements with half life(that's how we know that it decayed),
Atoms that release energy and particles(like alpha beta and gamma particles) and,
Elements that have turned into a new element (as in radioactive decay no. of protons can decrease)
And to be precise the elements that have neutron to proton ratio of more than 1 undergo radioactive decay, since the nuclear attraction gets all weird after that.
Answer:
A It is the interaction between living and non-living factors, in a given area
Explanation:
because ecosystems in my mind are usually small but they can cover vast areas and it is the interaction between organisms not just organisms but other living things in that area too.
Answer:
Anna has been dead for more than a few hours.
Explanation:
There must have been enough time for the flies to find the body and lay the eggs.
There is carbon which is what plants need and human release
h20 which is scientific name for water not sure about the others
