The correct answer is B; acidic clouds.
Further Explanation:
Acidic clouds are the reason for the defoliation of the evergreen trees. The clouds produces a mist that hits the trees. This causes the calcium leeching process to start. Once this process starts, the needles start to freeze and thus kills off the needles.
The new needles that start to come in and replace the dead/frozen ones will then die before every getting to reach full growth. This causes the tree tops to die.
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Yes! a region of the body with greater sensory acuity to have cutaneous receptors with large receptive fields, or small receptive fields.
The sensory receptor located in the skin is known as a cutaneous receptor ( the dermis or epidermis). The somatosensory system includes them. Mechanoreceptors (pressure or distortion), nociceptors (pain), and thermoreceptors are cutaneous receptors (temperature). The lowest spatial resolution is found in the thigh and calf area, whereas the fingertips have the highest spatial resolution (and the smallest receptive fields) (and largest receptive fields). Two-point discrimination threshold measurements can be used to assess the spatial resolution in response to light touch stimuli.
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Elements in the same group have similar properties because they are made up of most of the same materials.
Strong/ fit because u need exercise in order to stay fit and healthy for muscles or anything in the body