Question

please answer these questions​

Answer 1

Answer:

Step-by-step explanation:

1 (1) pq, -7pq

(2) x^2, -3xy, y^2

(3) x³y³z, 4/5xy², 3yz, 5

(4) 3/5x², -2/3xy, 5/7y², -xyz, 5

(5) -3x²yz, 2y²xz, 5/12xyz²

(6) 5ab^4c, -2/3a²b, 5b²c, -3/7a²c, abc, 1

2(1) 3x²-4xy

(2) 5/7y²-3xy-2/3x+4

(3) 2p-3/q-7q/p²+3r-5

(4) a³bc²-4/a²b²c²+7/11ca+9

3(1) 2/3a², 5/7ab²c, 3/5c Number of terms=3

(2) 7xpq, -3. Number of terms= 2

(3) y²,x²/3, -5. Number of terms= 4

(4) 2a+b-c/3. Number of terms=3

Answer 2

Answer:

Soil erosion is the displacement of the upper layer of soil; it is a form of soil degradation. This natural process is caused by the dynamic activity of erosive agents, that is, water, ice, snow, air, plants, animals, and humans