Question 13 the concentration of which component of the atmosphere has increased dramatically since the beginning of the industrial era? nitrogen oxygen argon carbon dioxide

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.

Chromosome 17 is made of over million base pairs.

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world