The diagram below represents the process of photosynthesis. Which of the following is true about this process?
A.
Photosynthesis results in an overall decrease in the number of carbon atoms in ecosystems.
B.
Photosynthesis results in an overall increase in the number of oxygen atoms in ecosystems.
C.
Photosynthesis permanently stores carbon and oxygen atoms inside plant tissues.
D.
Photosynthesis plays a role in cycling carbon and oxygen atoms through ecosystems.

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

answer: good job it's all correct !

explanation:

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explanation:

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