4. Point-source pollution comes from a known source. Which amount is point-source pollution?
a. the difference between E and F
b. the difference between F and G
c. the difference between G and H
d. the difference between H and I

B the difference between F and G

Explanation:

Its the sourse of the angle which gives you 180* of 90* then leads you to the agle corners/numbers

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.