Answer: They provide water for rice farming. The region spans a great distance from north to south.
Explanation:
Astronomers have been trying to figure out how many galaxies there are in the cosmos for a long time. To get their estimate, they employ a technique known as "representative sampling." They count the number of galaxies in each sector by dividing the sky into equal-sized parts.
Answer: 1. to follow the canary current
Explanation: