What crane device limits the angle of the boom at its highest position? a. block b. boom stop c. jib

Which of the following is one of the innovations that neolithic farmers become more productive? a) plow b) windmill c) tractor d) reaper

Which civil rights act banned discrimination against any person based on race or color? 14th amendment 15th amendment civil rights act of 1964 voting rights act of 1965

Alimitation on the president’s power to appoint ambassadors is that