1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dsp73
3 years ago
7

The Earth has always had oxygen in the atmosphere. A) True B) False

Biology
2 answers:
Angelina_Jolie [31]3 years ago
8 0

The correct answer is FALSE

Montano1993 [528]3 years ago
4 0
B) false it didn’t always have oxygen
You might be interested in
A certain substance inhibits sleep, increases alertness, and speeds up central nervous system. It easily becomes habit forming,
olga2289 [7]
When they sleep the want to reduce the high number of risk in the chronic
7 0
3 years ago
Compare artificial and biological neural networks. what aspects of biological networks are not mimicked by artificial ones? what
kramer
Birds have inspired flight and horses of inspired locomotis and cars yet none of today’s transportation vehicles for symbol medal skeletons of living breathing self replicating animals. However they do succeed in lifting of the ground in the same function as a bird, as well as the landing.
3 0
2 years ago
2.
klasskru [66]

Answer:

:ADFKL

Explanation:;kaDFS": just doing it for the points

8 0
3 years ago
__________, a black mold that grows well on building materials, causes "sick building syndrome" in those who have been chronical
Nesterboy [21]
Lit is a lichen,a combination of an algae and a fungi
7 0
3 years ago
At the end of meiosis, the number of chromosomes in each daughter cell is halved because meiosis has 2 points A. two cell divisi
klio [65]
I believe it would be B not 100% sure tho
8 0
3 years ago
Other questions:
  • Where do p and S waves travel? (Like through the earth, on its surface, etc)
    6·1 answer
  • Which of these diagrams best shows Kepler's model of the solar system?
    13·2 answers
  • If someone spills very hot coffee (200 0f on their skin, they will likely perceive much pain. which of the following receptor ty
    8·1 answer
  • Which is a concern of scientists when genetically modifying plants
    10·2 answers
  • 10. Sexual reproduction is believed to have
    7·1 answer
  • What contains deoxytibose sugar
    13·1 answer
  • Read about physicist Joseph Rotblat in the article titled Science and Society. Which statements describe how Rotblat was influen
    10·2 answers
  • Which of the following statements is true? Groundwater is the largest available source of freshwater. Most of Earth's water is f
    11·2 answers
  • What is the functions of the digestive, excretory, respiratory, circulatory, and lymphatic systems, and how do they interact to
    11·1 answer
  • Q2.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!