What were the steps used in the scientific method for the dinsaurs extinction?
Step 1. Observation: italy's 1970's, geos working on 65mya rocks. KT boundary 65 mya ago rocks. Iriduim Spike (not common on earth) Step 2. Hypothesis, asteriod struck earth, kicked up debris, blocked sunlight, stopped photosynthesis Step 3: Gather evidence, all at 65mya, clay layer weathered glass, "the smoking gun" tektites, shocked quartz, iridium spikes, new animals. Step 4: Reject hypothesuis: stupidity, change climate, dinosur disease, mammals outcompeted dinosaur, dinosaur flatulence (ALL NOT TRUE). Scientific consensous: what ever is most probable given the evidence in hand: AN ASTROID DID IT>