Answer:
Genetic drift
Explanation:
Genetic drift describes random fluctuations in the numbers of gene variants in a population. Genetic drift takes place when the occurrence of variant forms of a gene, called alleles, increases and decreases by chance over time. These variations in the presence of alleles are measured as changes in allele frequencies.
Water evaporates salts in seawater increase in concentration. Minerals precipitate
If ice were more dense than water, it would freeze and sink over and over until the entire lake was frozen. ... This same process occurs in the fall as the surface water cools and becomes more dense; it will sink and cause the same movement or turnover of the lake's water.
Answer:
Answer:
New York City: 50 Years ago: 625 ppm Present Day: 893 ppm Future Development Impact: 843 ppm. Recommendation: Stop littering in water, to help keep it clean.
Amazon Rain forest CO2: 50 Years ago: 318 ppm Present Day: 402 ppm Future development impact: 338 ppm Recommendation: Avoid human interaction so nature can take its course.
Sahara Desert Loss Of Land: 50 Years ago: 1.2 Meters Present Day: 3.5 Meters Future development impact: 2.4 Meters Recommendation: Using better farming practices by rotating crop locations can help with soil erosion.
Explanation:
I changed the wording so it cant be traced, but some websites had the answer key.