Please help (15 points) use your own words and not someone else's from brainy please In terms of their features, how are the Indus Valley and the Shang civilizations similar? Write one to two paragraphs discussing the similarities between the two civilizations.

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Which layer surrounds the center of the earth? a: crust b: core c: mantle

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare