Which of the following will not contribute to resource conservation?
a.

using solar power
b.

recycling glass
c.

using nuclear power
d.

using biofuels

Option C, using nuclear power, is the right answer.

Conservation of resources is the humane consumption and safekeeping of precious resources, such as water, wildlife, minerals and trees etc. The main focus of the conservation of resources is on maintaining the physical environment in order to preserve the sources of supplies.

Options A, B and D, contribute to the Conservation of resources in one or another way.  But option C (using nuclear power) does not contribute to resource conservation because of the elements used in the production of nuclear energy cannot be recycled.

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.