Pl help asap The voyage of the H. M.S Challenger was important because

A. it was a race won by Americans, to demonstrate superior sailing and ship building skills

B. navigators were able to circumnavigate the globe for the first time in history, demonstrating celestial
navigation skills

C. physicists, chemists, and biologists conducted experiments and gathered collections that changed
exisisting scientific knowledge about the oceans.

D. the first known data gathered about ocean currents and the Gulf Streams influence on weather were
documented by biologists and meteorologists.

the overall balanced equation

6co2 + 6h2o > c6h12o6 + 6o2

sunlight energy

where: co2 = carbon dioxide

h2o = water

light energy is required

c6h12o6 = glucose

o2 = oxygen

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

a. 35°c

b. 25°c

c. 10°c

d. 40°c