Answer:
Earth's outer core is a fluid layer about 2,400 km thick
Explanation:
composed of mostly iron and nickel that lies above Earth's solid inner core and below its mantle. Its outer boundary lies 2,890 km beneath Earth's surface
On primary succession newly exposed or newly formed rock is colonized by living things for the first time. And in secondary succession an area that was previously occupied by living things
The Mitochrodria helps break down sugar and turns it into energy