" Earth is a living planet because it contains organisms. Life exists on Earth on the land, in the water, in the atmosphere. An organism that uses solar or chemical energy to produce "food" by making inorganic compounds into complex organic molecules. " (Quizlet)
Hope this helps
Answer is (a) human adaptability.
Rationale for rejecting b,c,d options:
Humans do not have a high fecundity, they can give birth to 1-3 offspring on an average.
The skin tone variation is an adaptation that is based on the geography. The sunlight intensity affects it. It is a part of the ability of the humans to efficiently adapt to their surroundings.
The body variation in the form of physical features is also the result of the ability of the humans to adapt to their surroundings.
75 percent will have red hair and 25 percent will have blonde :)
Answer:
reduce the amount of fossil fuels they combust
Explanation:
Fossil fuels lead to environmental damage and its burning releases a lot of pollutants especially carbon and sulphur oxide to the air. The carbon increase in the atmosphere may lead to global warming because of the so-called greenhouse effect. To reduce carbon by returning to the normal cycle, humans can reduce the amount of fossil fuels they combust, try converting solid coal to gas or liquid and for removing pollutants or alternatively used renewable energy sources that are less pollutant.