Many people are against the use of nuclear power plants because of the risk of meltdown, earthquakes, and tsunamis. however, some groups still argue that nuclear power plants are worth the risk.
what is a positive effect of nuclear power plants?
a. energy can be generated without risking the safety of plant employees.
b. the waste from these plants is used to produce space station materials.
c. the waste from these plants is safe, and its storage and disposal are simple.
d. energy can be generated without burning fossil fuels.

Answer : Option D) Energy can be generated without burning fossil fuels.

Explanation : Nuclear power plants are worth a risk because, it allows to generate energy without burning fossil fuels.  

As currently, nuclear energy is considered to be one of the those environmentally friendly source of energy which does not use burning of fossil fuels and thus produces fewer greenhouse gas during the production of electricity as compared to traditional sources which was majorly produced from coal power plants.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a