Seashells come from Mollusks. Mollusks are a large group of Marine animals including clams, mussels, and oysters.
Similar fossils found on different continents helped geologists determine how the continents used to be connected. Mountain belts marked the boundaries of moving plates, which showed in which direction the different continents drifted. Extrapolating from this information, scientists had a rough idea of how the continents were arranged eons ago.
Because Shimla is very cold in winters and modrate in summers
The difference is just 1 mph. Winds 73 mph or less is a storm and 74 mph or more is a hurricane.
