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GarryVolchara [31]
3 years ago
13

Over the past 150 years, how has fossil fuel consumption affected the carbon dioxide concentrations in the atmosphere?

Biology
2 answers:
Delvig [45]3 years ago
4 0

Answer:

Increased fossil fuel use has increased atmospheric carbon dioxide.

Explanation:

Burning fossil fuels increases the amount of CO₂ in air, which is unhealthy.

Rasek [7]3 years ago
4 0

Answer:

Recently the amount of CO2 in the atmosphere has been rising at 2.4 parts per . So if the CO2 increase is caused by burning carbon (fossil fuels) we would Figure Atmospheric Oxygen Concentration observed from Cape Grim, Tasmania  that a natural release of CO2 would have any effect on atmospheric O2 levels. hehe IM a 2 year  biologist teacher:D

Explanation:

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Irina18 [472]
I think that the Risk assessment depends on medicine. Here's some extra details: the PROCESS by which HAZARD, exposure and risk are determined. The four steps of risk assessment are Hazard identification<span>Dose-response assessment
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7 0
3 years ago
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Calculate the frequency of b cells specific for antigen a on day 36 if the antibody concentration on day 36 is about 8 × 103. (f
matrenka [14]
-The number of B cells producing the antibody is proportional to the concentration of that antibody.

-On day 16, one out of  100000 B cells are specific for antigen A
\frac{1}{100000} = 1 x 10⁻⁵ B cells

- on day 16, Antibody concentration is  2 × 10¹= 20 Antibodies
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20 antibodies ------------ 1 x 10⁻⁵ B cells
8000 antibodies--------------x

x= (8000 x 1 x 10⁻⁵)/ 20
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8 0
3 years ago
A "tool" is defined as "an instrument or device that is held by the hands and used to perform a particular task or function." Th
Hunter-Best [27]

Answer:

Explanation:

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The most advanced tool I have used today is the mobile phone. This is a tool of the 21st century which makes communication easier and faster.

6 0
3 years ago
How is the genotype of the offspring different from that of the homozygous dominant parent?
tatuchka [14]

Since it's been crossed with a homozygous wrinkled green, the offspring has a genotype for heterozygous round and yellow. As round and yellow are dominant traits, they're expressed in the phenotype. But when self pollinated in the f2 generation, the recessive ones will show as well

Hope it helps :')

8 0
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What describes the main purpose of RNA polymerase during transcription?
tia_tia [17]

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