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
ale4655 [162]
3 years ago
8

What is unique about Carbon

Biology
1 answer:
allochka39001 [22]3 years ago
8 0

Carbon is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms, and because the carbon atom is just the right, small size to fit in comfortably as parts of very large molecules.

Carbon atoms can share not only a single electron with another atom to form a single bond, but it can also share two or three electrons, forming a double or triple bond. This makes for a huge number of possible bond combinations at different places, making a huge number of different possible molecules. And a molecule that differs by even one atom or one bond position is a molecule of a different compound.

You might be interested in
PLZ HELP I NEED IT ASAP
RideAnS [48]
It’s D hope that help,
8 0
2 years ago
Before a scientific theory is accepted and supported, it has
I am Lyosha [343]

Answer:

Has to be tested and verified

Explanation:

8 0
2 years ago
Read 2 more answers
Describe the effects of the increase in temperature over the past 100 years.
Bezzdna [24]

Global surface temperature has been measured since 1880 at a network of ground-based and ocean-based sites. Over the last century, the average surface temperature of the Earth has increased by about 1.0o F. The eleven warmest years this century have all occurred since 1980, with 1995 the warmest on record. The higher latitudes have warmed more than the equatorial regions.

Beginning in 1979, satellites have been used to measure the temperature of the atmosphere up to a height of 30,000 feet. The long-term surface record and the recent satellite observations differ, but that fact is not surprising: the two techniques measure the temperature of different parts of the Earth system (the surface, and various layers of the atmosphere). In addition to this, a variety of factors, such as the presence of airborne materials from the 1991 eruption of the volcano Mt. Pinatubo, affect each record in a different way. Satellite observations were initially interpreted as showing a slight cooling, but more recent analyses accounting for natural, short-term fluctuations imply warming, just as the ground-based measurements have indicated over a longer time period. As more data from the satellite record become available, and as the quality of measurements is improved, comparison of these two records should yield additional insights.

A warmer Earth speeds up the global water cycle: the exchange of water among the oceans, atmosphere, and land. Higher temperatures cause more evaporation, and soils will tend to dry out faster. Increased amounts of water in the atmosphere will mean more rain or snow overall. We may be seeing the first signs of changes in the water cycle. Since the beginning of the century, precipitation in the United States has increased by about 6 percent, while the frequency of intense precipitation events (heavy downpours of more than two inches per day) has increased by 20 percent. Such events can cause flooding, soil erosion, and even loss of life. In some midcontinent areas, increased evaporation has led to drought because the heavy rains fell elsewhere.

There is also evidence that ecosystems are reacting to warming. Between 1981 and 1991, the length of the growing season in the northern high latitudes (between 45oand 70o N) increased by a total of up to twelve days, as documented by satellite imagery. Greening in spring and summer occurred up to eight days earlier, and vegetation continued to photosynthesize an estimated four days longer.

Global mean sea level has risen 4 to 10 inches over the last 100 years, mainly because water expands when heated. The melting of glaciers, which has occurred worldwide over the last century, also contributes to the rise. Formerly frozen soils (permafrost) in the Alaskan and Siberian arctic have also begun to melt, damaging both ecosystems and infrastructure. Melting and tundra warming will also lead to decay of organic matter and the release of trapped carbon and methane, creating an additional source of greenhouse gases.


3 0
3 years ago
What information would you have to know to determine the toughness of a solid?
Mrac [35]
You need to know 1) How much kinetic energy it absorbed before it broke.
2) What materials are able to scratch it.
3) Its mass.
8 0
3 years ago
Read 2 more answers
ILL GIVE BRAINLIEST!!!<br><br> please answer!
VARVARA [1.3K]
The answers are: BB Bb bb
3 0
2 years ago
Read 2 more answers
Other questions:
  • What are the two categories of observations?
    8·2 answers
  • Why do scientists believe the polar ice is disappearing?
    7·1 answer
  • If matter such as a piece of paper changes in size or shape it indicates that
    6·1 answer
  • Which objects allow humans to access groundwater? Check all that apply.
    5·2 answers
  • if you were in charge of an effort to help reduce eutrohication and the soread of dead zones in the gulf of Mexico, whichof the
    8·1 answer
  • Which biome contains large populations of grazing herbivores, few species of birds, and deep, rich soil?
    6·1 answer
  • In the late 1980s and early 1990s, the percentage of Icelandic children whose bacterial infections were caused by bacteria resis
    13·1 answer
  • Give SOME EXAMPLES OF NATURAL CYCLE CHECKPOINTS .
    14·2 answers
  • Why is the cycling of matter important to life on earth?
    13·1 answer
  • What is the addition of mass called
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!