Mariana is learning about the movement of stars and other celestial bodies in the sky in her astronomy class. What specific topic is Mariana learning about in class?
astrometry
heliocentric models
pariapsis
solstices

What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.

9. wind power creates pollution. water air soil noise

What would happen if the krill were removed from the food web