Mary and ron are discussing the properties of water. mary says that when water freezes, it becomes less dense than liquid water. ron says it becomes more dense. who is correct and why?

ron, because ice molecules are smaller than liquid water molecules

ron because ice sinks in liquid water

mary, because ice molecules are larger than liquid water molecules

mary, because lakes and ponds freeze at the bottom first

Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. what can be inferred from these observations? monarchs must threaten and attack birds, but not wasps. monarchs have a way of discouraging bird predation that does not involve hiding. monarchs’ wings are so colorful that most birds must find them difficult to eat. monarchs lay more eggs than other less conspicuous butterflies.