Which of the following explains how scientists know that current global warming is related to human activities? Atmospheric carbon has increased much faster than in the past.
There were no greenhouse gases in the atmosphere in the past.
There was more methane in the atmosphere 6,000 years ago.
There is more water vapor in the atmosphere today than the past.

Answer is not C

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

answer; aerobic conditions; citric acid cycle (krebs cycle) electron transport chain;         anaerobic conditions; fermentation; both glycolysis;

the right answer is mentionned in the picture.

mitosis consists of dividing a mother cell into two daughter cells. unlike meiosis, mitosis is unsexed. there's four phases in mitosis: prophase, metaphase, anaphase and telophase (each phase is represented in the picture).

mitosis or cell division allows to multiply the number of cells while preserving the quantity and the quality of the information contained in the chromosomes. the course of mitosis depends on very precise mechanisms. these mechanisms are universal, that is to say common, with a few details, to all eukaryotic organisms, animals and plants.