1.how can light waves from the sun be converted to electricity?

a through an electric heater
b through a solar cell
c through a hydroelectric dam
d through the process of fission
2.which statement best describes the law of conservation of energy?

a energy can be destroyed but not created.

b the conservation of energy is unrelated to the conversion of energy.

c energy cannot be created or destroyed.
d natural resources need to be conserved.
3.which example best describes the conversion of chemical energy to mechanical energy?

a electricity boiling water

b sunlight warming the ground

c fuel being combusted to power a rocket

Solar power harvests radiant energy carried by the light from our sun by converting it into electricity. Biomass from plants. Plants are able to harness and use light energy in a process called photosynthesis.

Explanation:

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.

hi there!

answer: b. nucleolus

explanation: nucleolus is a structure in the nucleus are ribosomes are made.

hope this you!

have a nice day! : )

: d

-charlie

you! : )

: d