Indiana is home to fossilized crinoids. these small, sea-dwelling invertebrates are vaguely reminiscent of starfish, and some species of crinoid are still present on earth today, but these animals were especially common in the world's oceans about 400 million years ago. how is this information important to the theory of evolution?

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