27. Dark-colored, relatively flat regions of the Moon's surface that were formed when interior lava filled large basins are called
a. craters
b. volcanoes
c. maria
d. sedimentary rocks

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

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone