Biology

Biology, 18.07.2019 13:30, rozalee14

Scientists can determine if oxygen existed in earth's archean atmosphere by a. looking at the amount of salt content in rocks. b. looking for oxidized iron in rocks. c. determining how many people survived. d. determining the amount of outgassing that occurred.

answer

Answers: 1

Show answers

Similar questions

Предмет

English, 15.07.2019 09:20, maisymooch

What are the elements used in bones by carl sandburg ling me under the sea. pack me down in the salt and wet. no farmer's plow shall touch my bones. no hamlet hold my jaws and speak how jokes are gone and empty is my mouth. long, green-eyed scavengers shall pick my eyes, purple fish play hide-and-seek, and i shall be song of thunder, crash of sea, down on the floors of salt and wet. sling me . . under the sea.

Answers: 1

Предмет

Biology, 24.07.2019 19:00, kerra61

which of the following best describes why the sun is so important to us? a. it quickly purifies air that becomes polluted b. it is the major source of energy on earth. c. without it, all the water on earth would evaporate.

Answers: 1

Предмет

History, 02.08.2019 10:40, Jeiku3629

during the revolutionary war, which group believed that fighting for any reason was wrong? a.quakers b. congregationalists c. anglican church members d.loyalists

Answers: 1

Предмет

English, 02.08.2019 11:50, weeblordd

Which part of speech is the underlined word? you'll find the meat on the [left-hand side of the store. a. verb b. pronoun c. noun d. adjective

Answers: 2

Do you know the correct answer?

Scientists can determine if oxygen existed in earth's archean atmosphere by a. lo...

Questions in other subjects:

Konu

Mathematics, 20.07.2019 04:00

Classify each polynomial and determine its degree. the polynomial 3x2 is a with a degree of . the polynomial x2y + 3xy2 + 1 is a with a degree of ....

Konu

History, 20.07.2019 04:00

The olmec civilization existed from around 1400 bce to around 400 bce. they established trade routes...

Konu

Biology, 20.07.2019 04:00

During the early stages of meiosis, two chromosomes in a homologous pair may exchange segments, producing genetic variation in sex cells. this process of exchange is called a) tran...

Konu

Mathematics, 20.07.2019 04:00

Ineed someone to work out step by step 6x-3y/xy when x=6 and y= -4...

Konu

Biology, 20.07.2019 04:00

Freshwater ecosystems are not classified by: a. depth b. temperature c. salt content d. sunlight...

Konu

Computers and Technology, 20.07.2019 04:00

An external influence categorised as ag1...

Konu

Mathematics, 20.07.2019 04:00

What value of c makes the equation true? 3^√ x^3/cy^4 c = 12 c = 16 c = 81 c = 64...

Konu

Chemistry, 20.07.2019 04:00

Which of the following is altered by a catalyst? a. difference between the energies of products and reactants b. average kinetic energy of products c. average kinetic energy of re...

Konu

History, 20.07.2019 04:00

Jala feels that her almond-shaped brown eyes are not as pretty as blue eyes that are rounder in shape. jala's feelings of inferiority are called...

Konu

Mathematics, 20.07.2019 04:00

In a race brian collins has to cross 10 hurdles. find the probability that he jumps a hurdle is 2/3. find p(knocks down all hurdles)

Other tasks in the category: Biology More task