The variables for this experiment include the height of the track and the speed of the car. use the drop-down menus to complete the sentences and identify the independent and dependent variables. the independent variable, or the one that is intentionally manipulated, is . the dependent variable, or the one the response is measured in, is .

ocean expansion, global warming is melting icebergs and causing water levels to rise.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

c. is the correct answer