Here's a few: magnesium, oxygen, silicon, phosphate, and aluminum are all found in earth's crust in high proportion. oxygen being the highest proportion of any other element.
False. That is competiton, the stuggle between different species to survive with limited resources. Natural selection is when they organisms with traits that help them survive pass them (the traits) on through reproduction. This makes their valuable traits possible to rise in their offspring.
Answer: 1 : knowledge about the natural world that is based on facts learned through experiments and observation. 2 : an area of study that deals with the natural world (as biology or physics)
Explanation:
The answer is global warming
