4. What similar effect did the Tunguska and Hiroshima events have on living things?

• The question asks for a similar effect of two events. The options provided are: a) Total destruction of all plants, b) Disappearance of animals, c) Accelerated plant growth and skin diseases, d) No effects at all. Without additional context or information provided in the image that links these specific effects to both events, it's impossible to definitively answer. However, if we assume this is a multiple choice question from a lesson, the expected answer would be based on the material presented in that lesson.

Note: The provided image does not contain the answer to this question. Based on general historical and scientific knowledge, both events caused significant destruction, but the specifics might vary.