Answer:
Proper cleanliness of water..
Answer:
Agriculture is the basic source of food supply of all the countries of the world—whether underdeveloped, developing or even developed. ... Raising supply of food by agricultural sector has, therefore, great importance for economic growth of a country.
Other Branches of Earth Science[edit]Geology<span>, </span>oceanography<span>, and </span>meteorology represent a large part of Earth science, while astronomy<span> represents science beyond Earth.</span>
