What three substances can raise blood cholesterol level and why is this a concern?

The substance that causes cholesterol to raise are the below:

Saturated fats,
 
dietary cholesterol,

and trans fat

All the substance mentioned above can cause a hear attack. 
High blood cholesterol is one of the real hazard factors for coronary illness. A hazard factor is a condition that expands your shot of getting an infection. Truth be told, the higher your blood cholesterol level, the more prominent your danger of creating coronary illness or showing some kindness assault. Coronary illness is the main enemy of ladies and men in the United States. 

Humans can affect weathering and erosion in several ways.  humans cause  increases in acid rain and pollution, which increase the amount of  weathering  agents in the air and water, and then on land.for an easy answer: 1) acid rain2) pollution