How did the grand canal affect trade in china?

Does heat create density? Or does it remove density? I'm asking because I saw somewhere saying that the earth's core gets hotter and denser the deeper you go, but I have also been told that the convection process happens because material is heated

The primary purpose of housewrap (Tyvek) is to: A. reduce the likelihood of ice dams. B. channel water to weepholes make exterior siding easier to install. C. reduce air infiltration/drafts increase the insulation value in the exterior walls.

Which is the most accurate description of rapid urbanization in Mexico and Brazil? A. The informal sector of the economy has remained stagnant. B. Disparity in wealth has significantly lessened. C.

How did the development of a surplus in primitive agricultural society allow for occupational specialization and possible social stratification?

Who were the strategoi of Greece? A. Generals elected by the Assembly under the control of the Boule - much like the Speaker of the House B. Generals elected by the people who ran the army and navy - much like the Secretary of State C.

Question 3 What are the features associated with Karst topography? Explain the problems associated.

Which two lines of longitude run through southern Florida?

Consider you own geography. What are at least two possible natural disaters that are likely to occur? Make a list of essential items you and your family should stockpile in advance.

Why can rapid population growth rate be a problem for a nation?

Why did music suck in the 2010's?