Why is earths outer core hotter than earths oceanic crust? 1.earths oceanic crust is denser than earths outer core is.
2.earths oceanic crust has lava flowing from the mantle
3.earths outer core has a composition of solid iron and nickel.
4.earths outer core is deeper within earth than oceanic crust is.

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

How does human environment effect the biosphere