Which contributions did Johannes Kepler make? Check all that apply.
(1) Few advancements in scientific knowledge were made.
(2) Scientists discovered new evidence to support their theories.
(3) Scientists discovered that old interpretations of data was incorrect.
(4) Scientists used observations and mathematical data to solve problems in new ways.
(5) All theories developed during the time period were disproved by modern science.

During 1915-1917, u-boats attacked not only enemy ships but also

Which of the following best describes how the texas constitution of 1876 has changed since its enactment? there has been only one major overhaul. there have been several major overhauls. the constitution has undergone piecemeal revision. the constitution has doubled in size nearly every year since its enactment. the constitution has remained essentially unchanged from when it was first enacted.

How did european exploration and expansion cause the african slave trade to expand? a. european explorers discovered the slave trade and expanded it across the indian ocean into south asia. b. arab armies captured european explorers and forced them into slavery. c. european traders shipped enslaved africans to work on plantations in european colonies in the americas. d.european explorers captured african people and forced them to work on their ships.