It's only fair that stable gay relationships of long standing should have the same rights and responsibilities as married couples. I know the image of gay marriage is to some people horrific and ludicrous.
In the latter case life rests upon a thousand presuppositions which the individual can never trace back to their origins, and verify but which he must accept upon faith and belief.
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.