Which device directly converts chemical energy into electrical energy?
1) solar-powered calculator
2) wood-burning stove
3) battery-powered flashlight
4) wind-powered sailboat

Omg imgonnafailnfiedkla use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.

56.16 gregor mendel was the first scientist to use statistics to analyze scientific data. before mendel's experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. after mendel's discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. this is an example of pls

Why is it that 85.48 rounded to two significant figures is 85 and not 86?