Skepticism in the field of science can lead to new understanding. this is because when scientists are skeptical of a scientific study, they
a. usually accept the discoveries made in the study.
b. disregard the findings of that study completely, without proof or reason.
c. perform experiments to validate or disprove the findings of that study.

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

In 2015, about ten percent of total u.s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power

Identify the structures ! 20 points