can you please answer each question in great detail

Radioactive 137Cs(t1/2=30.17 years) and 134Cs(t1/2=2.06 years) were released in the Chernobyl disaster 30 years ago. Both isotopes primarily decay via emission. (i) Predict the product of the nuclear decay of 137Cs. (ii) Calculate.how long it will take for the radioactivity from the 137Cs isotope to reduce to 1% of its original value. (iii) Calculate the % of 134Cs hat persists 30 yrs following the Chernobyl accident. (iv) Explain how radioactive Cs gets into the food chain and why this may be a