The water cycle mainly involves interactions between which two spheres? A: atmosphere and hydrosphere
B: biosphere and hydrosphere
C: geosphere and hydrosphere
D: biosphere and atmosphere

Analogy- 1 is to arete as 5 is to cirque horn glacial valley hanging valley

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? 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.