Mount tambora in indonesia erupted and caused the "year without a summer." over 100,000 people died from starvation because of the resulting pyroclastic flow lahars climate change fires

The right option is; climate change

Mount Tambora in Indonesia erupted and caused the "Year without a Summer." Over 100,000 people died from starvation because of the resulting climate change.

Mount Tambora is situated on the island of Sumbawa in Indonesia. The destructive eruption of Mount Tambora occurred in 1815, and there was release of large amounts of ash, aerosols, pumice and other rocks into the atmosphere. This event influenced the climate and causes intense weather and harvest failures in many parts around the world. Over 100,000 people perished from famine and diseases, because crops could not grow in those regions.

it would lead to upper respiratory infections and pneumonia.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.