1. Fracking
2. Air pollutants.
3. Decomposition of organic matter e.g. in landfills.
4. <span>Chlorofluorocarbons </span>mainly in refrigerants and air conditioners.
Answer:
upper mantle and lower mantle
Explanation:
Answer:
human factors:
Access to a freshwater supply is affected by the following factors: Climate – low levels of rainfall and high temperatures lead to water deficits . When rainfall is low, there is less water available. When temperatures are high, water evaporates and so there is less available to use.
environmental factors:
Sedimentation.
Runoff.
Erosion.
Dissolved oxygen.
pH.
Temperature.
Decayed organic materials.
Pesticides.
Explanation:
no explanation. already explained in the answer
Many Native Americans in the Great Lakes - St. Lawrence Lowlands planted various crops such as maize. The correct option among all the options that are given in the question is the fourth option or option "d". I hope that this is the answer you were looking for and it has come to your help.
In Mars, there are only (C) 2 Moons. These moons are named as Phobos and Deimos. These 2 moons are discovered by Asaph Hall in which their names are gotten from Greek mythology. Since Mars is considered or named after the god of War, Ares. Then, his sons, Phobos and Deimos got the moons.
