Jonny tries to ride his bike a little longer each time. Which principle of fitness is he following? Individuality
Reversibility
Progression
Specificity

That depends on what kind of environ meant it is in  in space it has the same force that was applied when the velocity was gained

Ibelieve the answer is d. macula  hope my answer has you : )

Answerthe global climate during the paleogene departed from the hot and humid conditions of the late mesozoic era and began a cooling and drying trend which dispite having been periodically disrupted by warm periods such as the paleocene-eocene thermal maximum, persists today;