Answer:
Option A
Explanation:
As per the principle of intrinsic fitness, a person likes to work for his/her inner satisfaction driven by motivation within him/herself.
Thus, a young bird which feels an urge to produce chicks by mating each year will ultimately go outside to find his/her mate on their own and will produce chick every year. In an intrinsic behaviour the rewards achieved are internally self satisfying and thus a person need no assistance in achieving them on their own.
Thus, option A is correct.
Glacial balance is the balance or imbalance between accumulation at the top of the glacier and loss or disposal at the bottom.
Glaciers (US: /ˈɡleɪʃər/; UK: /ˈɡlæsiər, ˈɡleɪsiər/) are thick masses of ice that are constantly moving under their own weight. Glaciers form where snow cover has outpaced erosion for years, sometimes centuries.
As it flows slowly and deforms under its own weight, it takes on features such as cracks and shellac.
As they move, they erode rocks and debris from their roots, forming features such as cirques, moraines, and fjords. Glaciers can flow into bodies of water, but they form only on land, unlike the much thinner sea and lake ice that forms on the surface of bodies of water.
learn more about Glaciers here. brainly.com/question/6666513
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Answer: C
I hope this helps and have a wonderful day filled with joy!!
The top soil of the earth might become unusable for farming, and plants may not produce as much oxygen as they currently do
