Answer:
The correct answer is - ice shelves will have at risk of collapse.
Explanation:
Ella Gilbert and Christoph Kittel at the University of Reading, UK, and the University of Liege, Belgium, respectively made a computer model for the effect on ice shelves by climate change.
They found that if the world warms by 4°C, the continent’s ice shelves, approximately 34% will have melted water on their surface, which is known as hydrofracturing and a sign that these ice shelves are at risk of collapse.
Burning of fossil fuels that release sulphur and nitrogen compounds into the air is identified as the major cause of acid rain in the united states.
<h3>What are the causes of acid rain?</h3>
- Acid Rain is created when sulphate and nitrogen oxides from the atmosphere react with rainwater and fall as a result.
- Sulphur and nitrogen particles that mix with the wet elements of rain are the main causes in the production of acid rain.
- Due to air pollutants, notably the excessive levels of sulphur and nitrogen released by machinery and industrial operations, acid rain is made up of water droplets that are extremely acidic.
- The emissions that are released from industries are man-made causes.
- The natural causes, such as lightning strikes in the atmosphere that release nitrogen oxides and volcanic eruptions that release sulphur oxide.
The complete question is :
What have the scientific studies identified as the major cause of acid rain in the United States?
a )chemicals still in the atmosphere from the asteroid collision with the earth
b) excess solar radiation due to the depletion of the ozone layer
c) volcanic ash in the air
d) burning of fossil fuels that release sulphur and nitrogen compounds into the air
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In rheumatoid Arthritis patients, NK cell levels were abnormally elevated, possibly due to high serum levels of IL-2.
Rheumatoid arthritis (RA), is an autoimmune disease that means our own immune system attacks self healthy cells in the body by mistake, causing inflammation (painful swelling),mainly attacks the joints.
The given study is to investigate the relationship between serum interleukin-2 (IL-2) levels and disease activity.
This study also showed the relationship between absolute numbers of peripheral lymphocyte subsets, autoantibodies, and associated cytokines in patients with rheumatoid arthritis (RA).
The results showed that the number and percentage of NK cells were positively correlated with serum IL-2 levels so, IL-2 can be a reason for elevated level of NK cells
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D. To process information and form a response
Answer:
The <u>vas deferens</u> transports mature sperm to the urethra in preparation for ejaculation.
