D.
Arable means capable of being plowed and used to grow crops!
Answer:
predictions are difficult to falsify
Explanation:
According to my research on the Darwin's theory of evolution, I can say that based on the information provided within the question this has been criticized because its predictions are difficult to falsify. This is because evolution is a process that centuries to happen, and since psychologists need to study the individual in order to analyze their mental aspects and determine whether they were actually passed on, it is nearly impossible to prove this right or wrong.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
The fact that you were walking with your friend at night and weren't able to see her face but her face became more visible as time went by is an example of a. contrast gain: your eyes become more sensitive to the available contrast
<h3>What is contrast gain?</h3>
Contrast gain refers to the method by which the eyes adjust to the brightness around them as time goes on to allow us to see more clearly.
It works by the pupils dilating more to allow for more light to come into the eyes. This would then allow the eyes to focus on the image more clearly based on the given light it picks up.
You weren't able to see your friend at first because the pupils hadn't dilated but as soon as they began to, more light came into the eye in the process of contrast gain. As this happened, you were able to see her more clearly.
In conclusion, option A is correct.
Options for this question include:
- a. contrast gain: your eyes become more sensitive to the available contrast
- b. evolution: your eye physically changes to allow in more light
- c. photons: you are able to see in direct proportion to the number of visible photons
- d. social effects: your friend has moved closer
Find out more on contrast gain at brainly.com/question/798280
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