1. which ancient astronomer developed a geocentric model of the universe explaining the observable motions of the planets?

a. aristotle
b. ptolemy
c. copernicus
d. newton

2. aristotle concluded that earth was round because

a. it always casts a curved shadow during a lunar eclipse
b. he sailed around the world
c. he calculated earth’s circumference
d. it exhibited retrograde motion

3. the first early astronomer to propose a sun-centered solar system was

a. galileo
b. newton
c. copernicus
d. brahe

1. B. Ptolemy
2. A. it always casts a curved shadow during a lunar eclipse
3. C. Copernicus
hope it helps

Mantle convection is the process that drives plate tectonics. the theory of plate tectonics states that the crust is divided into plates that float on the semi molten mantle below. the circular motion of the magma as it slowly rises and falls or move though convection cells drags the plates along causing them to move. the heat source in the lamp would represent the earth's core. the core is the source of energy that drives convection in the mantle. the lava represents molten magma under the earth's surface. if the lava lamp had floating pieces they would move as the circular motion of the lava in the lamp as it rises and falls would move them along the surface. these floating pieces would represent pieces of the earth's crust. 

The answer to this question is  c. pharmaceutical accumulation  reclaimed water refers to the water that being used again after it already  used for agricultural purposes.this type of water often contains pharmaceutical accumulation because of the chemical fertilizer that is used for the plants is absorbed into the water.