Lots of points - pretty simple question - please be specific Why are the atmosphere, biosphere, lithosphere, and hydrosphere all called “Earth’s life-support system”?

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.

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

Consider the equation s + o2 ? so2. what is the product? question 3 options: s so 2 s + so 2 o 2