Select the correct answer from each drop-down menu. 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 1A(enter text here)

caused by the presence of oxygen in air. In a second example, 2B(enter text here)

actually created new rock after being dissolved in water or buried underground.

1A.

1.combustion

2.oxidation

3.fossilization

4.respiration

2B.

1.minerals

2.organisms

3.carbon dioxide

4.sunlight

(PLZ SOMEONE ANSWER THIS WITHOUT ANY LINKS, ITS ANNOYING)

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen