Aconsisted of a frame attached to a vertical wooden stick that was dragged through the field to break up the soil. a. soil refiner b. crop rotator c. cattle harness d. scratch plough

D. scratch plough

Explanation:

The plow or aradro (from the Latin aratrum) is a farming tool used in agriculture to open furrows in the ground and remove the soil before planting. Plow increases the porosity, which favors the growth of the plants, although when the soil is removed water is lost through evaporation and some soil through erosion, and the eventual rains wash nutrients and fertilizers that may have been applied to the soil, generating losses. Due to these limitations, towards the beginning of the 21st century the direct sowing was spread, the cultivation of the plants without soil tillage.

yes

explanation:

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.