Sprinder organism develops breathing organs from pharyngeal arches
Answer:
Water - it's coming from the bottle and the water came from the tap
light - coming from the sun
Breeze - coming from the wind which I see
Modelling uncertainty limits the accuracy of model predictions. Coral bleaching occurs because the seawater temperature is increasing. This is primarily because of climate change. Predicting climate change in the future is highly uncertain, as it is basically long-term weather prediction that depends on certain carbon emission scenarios. It is well known that normal weather prediction becomes inaccurate after around 14 days, so predicting long-term climate in the next 100 years or more is highly uncertain. There are a multitude of global circulation models (GCMs) that have been developed by different countries, all of which tend to predict widely different climate. Added to this uncertainty is that GCMs work on large spatial scales, and a technique called downscaling is used to predict more localised climate change. Since there are several ways of downscaling, this adds an additional level of uncertainty. Finally, we cannot be sure what carbon emissions will be released to the atmosphere in the future that will drive climate change, another source of uncertainty.
<span>Mitosis is a process of cell replication because in this process a parent cell will double its content (DNA,organelles, cytoplasm) and then separate them in to two identical cells. The replication is </span><span>the ability of a cell making two exact replicas of its DNA.
Another example of cell replication is meiosis.
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Answer:
The correct answer would be = t = 2.112 billion years
Explanation:
Given:
The number of crystal of uranium = 275 billion
The number of crystal of lead = 1925 billion
The half-life for 235U = 704 million years
Formula using :
N = N0e−λt
where,
no. of daughter atoms = N
at time t= 0, No. of parent atoms = N0.
Time = T
Half life = 0.693/λ
Decay constant = λ
Solution:
by putting value in the formula of the half-life
λ = 0.693/0.704
λ = 0.9844
Now, putting value in the formula for the age of granite.
275 = (275+1925)e^-0.9844 t
1/8= e^-0.9844 t
e^0.9844 t = 8
taking log
0.9844t = 2.07944
t = 2.112 billion years