Consider the hypothesis below and answer the question that follows. adding salt to water increases the water’s boiling point. if you performed an experiment to test this hypothesis, which action would introduce confounding variables into your experiment? a. you use distilled water sourced from the same place. b. you add black salt to some specimens and pink salt to others. c. you add equal quantities of salt in all the water specimens. d. you use earthen clay pots to store and boil all the water specimens.

Which table best shows the impacts resulting from human activity? impact of human activities human activity impact forest area cleared to construct an airport increase in oxygen level vegetation cleared to construct an oil mine increase in pollution impact of human activities human activity impact forest area cleared to construct an airport increase in sound pollution vegetation cleared to construct a power plant contamination of water impact of human activities human activity impact beehives cleared from urban areas increase in vegetation dams constructed on a river increase in fish population impact of human activities human activity impact beehives cleared from urban areas increase in bird population dams constructed on a river better quality of water

The many volcanoes located along the edge of the pacific ocean make up the ring of fire. how does subduction play a role in the volcanic activity in the ring of fire?

Classify the structures as homologous or analogous, depending on their structure and function.