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
NeX [460]
1 year ago
12

What does this graph tell you?A: Arctic sea ice has shrunk by over 2,000 square miles in the last 50 years.B: Arctic sea ice has

shrunk by over 1,000 square miles in the last 50 years.C: Arctic sea ice has shrunk by over 2,000,000 square miles in the last 50 years.D: Arctic sea ice has shrunk by over 2,000,000 square miles in the last 100 years.

Biology
1 answer:
Evgen [1.6K]1 year ago
4 0

The graph shows, in a period of time between 1978 and 2010. Therefore, it's related to the last 50 years, not the last 100 years, meaning that alternative D is wrong. The amount of sea ice shown in the graph is shown in the scale of million square miles. So, as the graph shows an initial value around 3.2 (3 millions and 2 hundred miles) and it ends up in a value around 2.2 (2 millions and 2 hundred miles), still the real values are around 2.8 (2 million and 8 hundred thousands initially) and 2.0 (2 millions at the end), having a lower value of 1.8 (1 million and 8 hundred thousand); So, in both scenarios, arctic sea ice has shrunk by 1,000,000 (1.0) square miles, being under 2,000,000, not over. Therefore, the highest number to be inside this amount is 2,000, so the correct answer is A: Arctic sea ice has shrunk by over 2,000 square miles in the last 50 years.

You might be interested in
if a deep-ocean trench is located adjacent to a continent, active volcanoes would likely be found _____.
horsena [70]
If a deep ocean trench is located adjacent to a continent, active volcanoes would likely be found landward from the trench. 
3 0
3 years ago
ndividuals III-6 and III-7 have two little monstersand are expecting a third one. Their two childrenhave two eyes. What is the c
CaHeK987 [17]

Answer:

The correct answer is - 75% or 3/4.

Explanation:

In the given question, there is a cross between III-6 and III-7 that produced two double eyes monsters and expected one more. As given in the image that the A or single eye is dominant over the a or double eye then both parents must be heterozygous as they produced double eye offspring (aa) and they do have only one eye.

then chances of single eye offspring would be -

cross: Aa and Aa

gametes: A, a and A, a

Punnett square:

           A      a

A         AA     Aa

a         Aa      aa

so there are 75% chances to have a single eye and 25% chances for a double eye.

7 0
3 years ago
if we use a cscl gradient to test the density of various nucleic acids, both rna and dna-rna hybrids are more density than just
Wewaii [24]

RNA and DNA-RNA hybrids are more dense than simply DNA if the density of different nucleic acids is tested using a CsCl gradient.

The primary technique employed in molecular biology is the extraction of DNA, RNA, and protein. Scientists can separate materials according to size, shape, and density by using density gradient centrifugation. Isopycnic centrifugation, a sort of density gradient centrifugation that Meselson and Stahl developed, employed a cesium chloride solution to separate DNA molecules solely on the basis of density. Because DNA has hydrogen bonds between its strands, which makes it less dense than RNA, RNA has a far larger density than DNA. RNA can be obtained at the test tube's bottom using a CsCl density gradient and high centrifugation, whereas DNA can be recovered in the middle layer.

To learn more about nucleic acids click here brainly.com/question/11309892

#SPJ4

6 0
1 year ago
What percent of garbage is above the surface and what percent is below the surface of the ocean?
snow_tiger [21]
Http://www.collective-evolution.com/2014/07/07/new-study-finds-88-percent-of-earths-ocean-surface-no...
This should be of use here. 
6 0
3 years ago
What is one way that temperature affects mechanical weathering?
Ket [755]

Answer:

Temperature changes can also contribute to mechanical weathering in a process called thermal stress. Changes in temperature cause rock to expand (with heat) and contract (with cold). As this happens over and over again, the structure of the rock weakens.

Explanation:

3 0
3 years ago
Other questions:
  • 4. What is the greatest contributor to air pollution in the United States? A. power plants B. factories C. burning waste D. auto
    14·1 answer
  • 8. An increase in the greenhouse effect causes an increase in
    9·2 answers
  • Which is an example of an external stimulus?
    5·1 answer
  • Do you think anything happened to the carrying capacity of the area from 1900 to 1940
    15·1 answer
  • Jet streams vary in height of four to eight miles and can reach speeds of ____?
    14·1 answer
  • Which fossil occurs on the most landmasses what does this suggest about when the continents broke up
    13·1 answer
  • An experiment wants to see if temperature will change the reaction rate for a chemical reaction. The same size and brand antacid
    8·2 answers
  • Do cell rest at night
    15·1 answer
  • THERE ARE_________ LAWS IN BIOLOGY<br> A- 1<br> B- 2<br> C- 3<br> D- 4
    13·1 answer
  • What do you think the following do when consumed? Protein, lipid,<br> carbohydrate, nucleic acid.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!