Scientific models are based on a set of observations. Please select the best answer from the choices provided
OT
0 F

Scientific models are based on a set of observations. Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made. ... Scientists utilize models for a variety of different purposes, but each type of scientific model has limitations.

Explanation:

thank me later

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.