Chemistry, 25.02.2021 21:50 lizzieee04

Social Studies 3rd Period ET
Read the passage
All over the country of China there is a kind of black
stone existing in beds in the mountains, which they dig
out and burn like firewood. If you supply the fire with
them at night, and see that they are well kindled, you will
find them still alight in the morning, and they make such
fine fuel that no other is used throughout the country. It
is true that they have plenty of wood also, but they do not
burn it, because those stones burn better and cost less
The Travels of Marco Polo,
Rustichello da Pisa
Which conclusions does the passage best support?
Choose three correct answers,
China burned coal more than wood for heat.
Marco Polo wrote about a new energy source from
China
China had used up most of its wood by clearing
land for farming
China lacked coal resources that could be easily
mined and burned
Marco Polo helped spread technology and ideas
from China to Europe,
O
Dono

Pleas hel

Answers: 3

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 00:30

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1

Answers: 3

Answer

Chemistry, 22.06.2019 07:30

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

Answers: 1

Answer

Chemistry, 22.06.2019 09:30

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

Answers: 1

Answer

Chemistry, 22.06.2019 10:00

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

Answers: 2

Answer

You know the right answer?

Social Studies 3rd Period ET
Read the passage
All over the country of China there is a...

Questions