Answer:
⭐Causes of environmental pollution
Urbanization and industrialization. Since the era of industrial revolution, man has continued to introduce hazardous materials into the environment at an alarming rate. ...
⭐Mining and exploration. ...
⭐Agricultural activities. ...
⭐Burning of fossil fuels. ...
⭐Particulate matter. ...
⭐Plastics.
The us has way more things to help fight such as medicines
Answer:
Mutations, gene flow, and sexual reproduction are all major causes of variation. By altering the genes of individuals in a population, DNA mutation causes genetic variation. As new individuals with different gene combinations migrate into a population, they cause genetic variation.
Explanation:
B)