In some countries, up to 30% of the food harvested is lost to spoilage due to pest infestation and contamination. in hot and humid climates, spoilage due to rot is especially a concern. elaborate on how nuclear energy and radioisotopes reduce spoilage, eliminate pests and extend shelf life. a) irradiation of the harvest using low doses of gamma radiation. b) crops are sprayed with alpha irradiated chemicals. c) fields are irradiated with gamma radiation. d) beta irradiation at the grocery store.