Everything that everyone is afraid of has already happened: The fragility of capitalism, which we don't want to admit the loss of the empire of the United States and American exceptionalism. In fact, American exceptionalism is that we are exceptionally backward in about fifteen different categories, from education to infrastructure.
Some plants are carnivores, gaining nutrients by eating various small insects and spiders. A well known example of a carnivorous plant is the Venus Flytrap.
Alkali metals such as sodium, potassium, rubidium, caesium and francium are extremely reactive elements, just putting them in water can result in an explosion! They are carefully stored in oil to prevent this happening.
While aluminum is the most common metal found in the Earth's crust, the most common metal found on Earth is iron, mostly because it makes up such a large part of the Earth's core.
