The causes of land pollutions are

Step-by-step explanation:

Pollution can be defined as the introduction of harmful substances (man-made or natural) into the environment.

There are four major types of pollution:

1. Land pollution

2. Water pollution

3. Air pollution

4. Noise pollution

Land pollution refers to the gradual disintegration of the earth surface.

Causes of land pollution

1. Deforestation: The continuous cutting down of trees in the forest.

2. Erosion: The gradual disintegration of soil caused by the action of water.

3. Harmful agricultural practices such as bush burning, introducing toxic substances such as pesticides into the soil

4. Increased industrial waste due to increase in the number of industries

5. Mining of natural resources from the earth surface

6. Construction of bridges, railways and roads

it's d.

step-by-step explanation:

because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.

then you would get: -4x - 1y + 2x -6y combine like terms

and get: 2x -7y

hope my answer has you if not then i'm sorry.

there is no question content here, but you for the free points! : d