Robin Hood wants to measure the length of a rope his merry men have recently detached from deputy sheriff. Robins stands on a cliff and shoots an arrow with the rope attached at a hamburger on the plain below little John paces 30 yards from the foot of the cliff to the hamburger and measures 45° between the taut cord and the ground

How long is the cord

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

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.

Ascientist is examining the role of an element found in facts and carbohydrates of living things. this element makes up 65% of human body mass. which statement describes he is studying