Ineed the topic sentence asap

read the paragraph carefully.

1his mom finally peered through the cracked door that johnny normally kept locked. 2the bedding was draped over a painting easel and placed near the window at the back of the room, which seemed to function as a shade in place of the curtains that lay next to their rod on the floor near the window. 3to the left was the bed: a bare mattress with stains and what appeared to be chewed holes resting askew on a box springs sitting on the floor. 4a single flat, gray pillow with no case was its only adornment. 5on the other side of the room, the sliding closet doors rested unhinged on the wall next to the closet. 6the closet itself featured a broken shelf and huge pile of clothing and various sporting items including a fishing pole, several balls of various types, what appeared to be a broken snowboard, a tennis racket, some bent golf clubs and other unidentifiable objects concealed to different degrees by the slew of disorder. 7the unkempt carpet resembled concrete, with unvacuumed dirt packed hard over the fibers. 8and the smell! 9indeed, the bedroom resembled the aftermath of some horrific natural disaster. 10her agreement to give him the privacy of his own room had been rescinded.

what is the topic sentence?

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May someone me answer these questions

What is rand's reason for including the ra.pe scene?   how does the event change both roark and dominique?   discuss how current attitudes on relations between the se.xes have changed since the publication of the fountainhead.

3one of the biggest impacts a building has on earth is the energy it uses. currently, most of the world’s energy comes from burning fossil fuels. these fuels are dirty and when they are burned they pollute the air and water. one way to burn fewer fossil fuels is to reduce the amount of electricity a building has to use. passive solar heating, which uses heat from the sun, reduces the amount of fossil fuel used to heat buildings. passive solar heating requires a south-facing wall made of glass. when sunlight shines through the wall, it is collected and used to warm the building. another way green buildings reduce their electricity use is to install other energy sources. for example, some green buildings use panels that turn energy from the sun into useable electricity. which is the best summary of paragraph 3? a) fossil fuels are dirty and pollute the air and water. most of the world's energy comes from these fuels. b) the biggest problem of buildings is that they use fuel that is dirty for heating. they need to do something to be more energy efficient. c) panels that turn energy from the sun into electricity and passive solar heating can stop the burning of fossil fuels which pollute air and water. d) since fossil fuels are dirty and pollute the air and water, other technologies that pollute less and produce energy have been developed like solar energy and green buildings.