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
kari74 [83]
3 years ago
15

Many factors are thought to have contributed to the formation of the Earth's atmosphere. Choose ALL that apply.E) The early Eart

h atmosphere formed mainly from gases spewed from volcanoes.
A)The early Earth atmosphere formed mainly from gases produced by cyanobacteria.
B)The current atmosphere contains more carbon dioxide than the earliest atmosphere.
C)Plants are responsible for bringing atmospheric oxygen up to its current level.
D)Cyanobacteria are responsible for first adding oxygen to the Earth's atmosphere.
Biology
1 answer:
xenn [34]3 years ago
3 0

Answer:

Cyanobacteria are responsible for first adding oxygen to the Earth's atmosphere.

You might be interested in
"Based on the information provided in the graph, the process that is occurring is
svp [43]
By studying the graph and the information given, you can tell that the process that is occurring is ecological succession. This is when ecosystems change over time and develop more over longer periods of time. The correct answer is number 1. 
4 0
3 years ago
PLZZZ HELP!!! How does extra matter happen?
ICE Princess25 [194]

Answer:

All the matter to ever exist was created in the big bang. The amount of space between clumps of matter is increasing, which is allowing the expansion of the universe. There are plenty of conditions for the every matters being created.

5 0
2 years ago
If green is dominant over purple then what is the genotype for this individual
aleksklad [387]

Answer: gg

Explanation:

7 0
2 years ago
Read 2 more answers
2. Write the molecular formula of following Magnesium Chloride, Sodium chloride, potassium nitrate, hydrogen oxide ​
inna [77]

Explanation:

Magnesium Chloride : MgCl2

Sodium chloride : NaCl

Potassium nitrate : KNO3

Hydrogen oxide : H2O2.

hope this helps you.

5 0
3 years ago
In a certain plant, yellow leaves are dominant and red leaves are recessive. A plant with genotype Yy and a plant with Yy are cr
Tanzania [10]

Answer:

One offspring would have red leaves.

Explanation:

Given

Yellow leaves are dominant and red leaves are recessive

Let us assume that the trait of Yellow color of a leaf be  represented by "Y"

and the trait of red color of a leaf be  represented by "y"

When two parent of genotype "Yy" are crossed with each other, the following offsprings are produced as shown in the punnet square below

Y y

Y YY Yy

y Yy yy

Total four offpsrings are produced out of which only one has red leave as red color is a recessive trait and it will appear only when both the allele in a cell are of red color.

Thus, one offspring would have red leaves.

7 0
3 years ago
Other questions:
  • If the codon is atc, what is the corresponding anticodon?
    5·2 answers
  • At what molarity is the sucrose solution isotonic to the cells? (solve for x, when y = 0)
    5·1 answer
  • 2. An adaptive advantage of having a three-chambered heart, as found in amphibians, over the two-chambered heart of fish is that
    12·1 answer
  • I do not understand this question. If someone could explain it to me. I’ve circled the question I need help with.
    8·1 answer
  • Mark knows that animals reflexively blink when air is puffed at their eyes. Now Mark wants to use this fact and classical condit
    11·1 answer
  • PLEASE HELP!!!!
    12·1 answer
  • Studies have been conducted on synthetic products
    14·1 answer
  • Which statement comparing examples of renewable and nonrenewable resources is true? A. Geothermal energy is a nonrenewable resou
    13·2 answers
  • Three young children are fighting over where to take
    14·1 answer
  • Help please true or false
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!