Which of these practical inventions did han scientists devise? select all that apply.

a. the wheelbarrow
b. the suspension bridge
c. the inclined plane
d. the telescope

Correct answers:

A) the wheelbarrow

B) the suspension bridge

The Han Dynasty held power in ancient China from 206 BC – AD 220.  During that period, much progress was made by Chinese scientists/engineers in terms of practical technology.  In addition to items like suspension bridges and wheelbarrows (which we'll get to in a moment), the Han period also saw great advances in metallurgy, developing wrought iron and steel, as well as several tools for agriculture.

We think of the wheelbarrow as a tool we might use in our own backyard gardening and landscaping, but the one-wheeled cart  was developed during the Han period for a wide variety of hauling purposes.  

China's landscape includes deep gorges, rivers, and other obstacles best traversed by some sort of bridge.  During the Han period in China, they developed and built suspension bridges, as well as beam bridges, arch bridges, and pontoon bridges.

according to the quotation from booker t. washington's 1895 atlanta compromise speech.

in the great leap from slavery to freedom . . the masses of us are to live by the production of our hands . . we shall prosper . . as we learn to dignify and glorify common labor.

washington believed that  hard work had its own kind of dignity.

explanation:

mark brainliest and have a great day!

general allotment act (dawes act) february 8, 1887

amendment to the dawes act, february 28, 1891

commission to the five civilized tribes (dawes commission), march 3, 1893