Complete the sentences about Earth’s early biosphere. After Earth formed, the emerging biosphere had several effects on Earth’s lithosphere. For example, rocks and minerals showed evidence of A
caused by the presence of oxygen in air. In a second example, B
actually created new rock after being dissolved in water or buried underground.

A. combustion
oxidation
fossilization
respiration

B. minerals
organisms
carbon dioxide
sunlight

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a.the offspring are more likely to have freckles. b.the offspring are more likely to have no freckles. c.the likelihood of the offspring having freckles and not having freckles is the same. d.the likelihood of the offspring having freckles and not having freckles cannot be determined.

Due tonight 10 points will mark brain