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
Anvisha [2.4K]
2 years ago
5

Banded iron formations show us when

Biology
1 answer:
Irina-Kira [14]2 years ago
6 0

Answer:

oxygen became plentiful on earth

Explanation:

This is because banded iron formation is formed as a result of oxygen present in the ocean which is produced from cyanobacteria which undergo photosynthesis to produce carbohydrates and oxygen.

The oxygen produced are plentiful and they react with dissolved iron on the Earth's ocean to produce iron oxides which precipitated out and form a thin line floor on the ocean.

You might be interested in
Write difference between breathing and sespisation​
irga5000 [103]

Answer:

brainliest please

Explanation:

Breathing is the physical process where you inhale and exhale air in and out of your lungs. Respiration is a chemical reaction where Oxygen is used to breakdown Glucose in order to generate energy which is then used by the cell to function.

4 0
2 years ago
Monkeys and bats have similar bone structure in their forelimbs. However, monkeys have longer forelimbs to use for climbing and
Talja [164]
They are homologous because they have similar structure regardless of purpose
8 0
3 years ago
Read 2 more answers
Some over-the-counter medicines should not be given to very young children. For example, cold medicines contain decongestants an
OverLord2011 [107]

Answer:

The correct answer is "True".

Explanation:

Over-the-counter (OTC) medicines are a type of drugs that are sold directly to the consumer without needing a doctor's prescription. OTC medicines that contain decongestants and antihistamines can raise blood pressure and heart rate, therefore its use for children must be monitored. The FDA reports that children, particularly under the age of 2, could suffer life-threatening side effects from taking these medicines, including: convulsions, rapid heart rates and death.

7 0
3 years ago
Dennis Meadow’s __________ asserted that due to the expanding human population, the ecosystem will collapse by the middle of the
Marrrta [24]
His book was "The Limits To Growth" my good man
8 0
3 years ago
Read 2 more answers
what are the two structures you would find at a passive continental margin that you would not find at an active continental marg
AveGali [126]
<span>There are two structures that would be found at a passive continental margin. These structures are continental shelves and continental slopes.</span>
3 0
3 years ago
Other questions:
  • Which species seem the least alike?
    12·1 answer
  • __________ result(s) from compression stress like that found at convergent plate boundaries.
    9·1 answer
  • The four major divisions on the geologic scale
    10·1 answer
  • When the bleeding occurs it is referred to as the princple of
    7·1 answer
  • Explain the significance of the threat that an invasive species brings to an ecosystem.
    15·2 answers
  • The most common compounds in organic sediments are *
    5·1 answer
  • Explain
    5·1 answer
  • What type of data does an an EKG AND ITS importance in understanding the health of the heart.
    5·1 answer
  • How does widespread illness in food animals affect people's health?
    9·2 answers
  • What plant organ captures the most solar energy to power photosynthesis
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!