According to the ipcc (intergovernmental panel for climate change), 1.6 billion tons of carbon dioxide a year are released into the atmosphere due to deforestation. until the early 1900s, deforestation was the dominant source of increased co2 in the atmosphere. what has surpassed deforestation as the number one anthropogenic source of carbon dioxide emissions? a) volcanic eruptions b) cellular respiration eliminate c) livestock production d) burning of fossil fuels

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !