A student made the following observations about astronomical bodies. Observation 1: The objects in the sky rotate once in 24 hours.
Observation 2: Jupiter's moons revolve around Jupiter.

Which observation(s) can be explained using the geocentric model?

Only observation 1
Only observation 2
Both observation 1 and observation 2
Neither observation 1 nor observation

Afood web shows who eats who in any given habitat. every living thing, from one-celled algae to giant blue whales, needs food to survive. each food web is a possible pathway that energy and matter can follow through the habitat. a food web begins with producers: organisms that convert sunlight into usable chemical energy. the food web is completed by the decomposers who turn organic wastes, such as decaying plants, into inorganic materials, such as nutrient-rich soil. decomposers complete the cycle of life, returning nutrients to the soil or oceans for use by producers. in this food web, identify the decomposer.

Alaser tag arena sells two types of memberships. one package costs $325 for one year of membership with an unlimited number of visits. the second package has $125 enrollment fee, includes five free visits, and costs and additional $8 per visit after the first five. how many visits would a person need to use for each type of membership to cost the same amount over a one-year period?

Explain how you might determine the rate of weathering on a sample rock