Energy efficiency is usually obtained through . a. increased funding b. technology c. government programs d. all of the above Please select the best answer from the choices provided

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

Select the word from the list that best fits the definition a system made of 25 satellites

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.