Question

use the drag - and - drop environment to put the correct words in the right places. (please note: not all draggable items will be used.) keeping track of time on a big world like the earth has been quite a challenge. our units of time have often been connected to astronomical cycles. the time it takes the earth to go once around the sun is called the _, while the time it takes the earth to rotate once on its axis is called the _. before modern technology, most communities on earth kept time using the position of the sun in the sky, which we call the _. after mechanical clocks were invented, people switched to using _, which has exactly 24 hours a day. when long - distance travel became more common, we divided time around the world into 24 _. draggable items: apparent solar time, calendar months, day, mean solar time, month, standard solar time, week, year, meridians

Explanation:

The time for Earth to orbit the Sun is a year. The time for Earth to rotate on its axis is a day. Before modern - tech, people used apparent solar time based on the Sun's position. After mechanical clocks, mean solar time with 24 - hour days was used. And the world is divided into 24 time - zones related to meridians for long - distance travel timekeeping.

Answer:

The time it takes the Earth to go once around the Sun is called the year.
The time it takes the Earth to rotate once on its axis is called the day.
Before modern technology, most communities on Earth kept time using the position of the Sun in the sky, which we call the apparent solar time.
After mechanical clocks were invented, people switched to using mean solar time, which has exactly 24 hours a day.
When long - distance travel became more common, we divided time around the world into 24 meridians.