Yes.
To get a steak you have to spend a lot of energy on growing plants as food for the animal that will become the steak. And animals aren't that good at turning plants into meat, so you have to feed them a lot more than they produce.
If you grow plants to feed to people directly instead, bypassing the animal, the same amount of plants will feed a lot more people than the animal did.
It is an inefficient way of obtaining the energy that plants originally had because as the food chain progresses the energy obtained by each level decreases. As humans, we are at the top of the food chain. Therefore we obtain the least amount of energy.
19th
They don't turn grass into meat!! They turn it into ENERGY by eating it. _________________________ The energy is wasted in execration, respiration etc. Not all the energy is consumed as biomass on the sheep.
No, it is a very unreliable and inefficient energy source.
They are incredibly inefficient.
An incandescent light bulb is very inefficient light source because of the amount of heat energy wasted when it is energized.
Protein can provide energy, but this is extremely inefficient. This is due to the fact that the energy it takes to make it usable as energy is almost as much as the energy it provides.
I have no idea what this question means. What is high quality energy?
Rubbish in general is not. Some can be used but it is very inefficient to do so.
The thermal energy output of the new engine was inefficient, as the thermometer quickly demonstrated.
It is usually not energy that is efficient or inefficient. Rather, the technology used to extract it may be efficient or inefficient. In the case of any heat energy, the upper limit to the efficiency is given by the Carnot equation for heat engines, and depends on the temperature of the heat source, as well as the environmental temperature.
Incandescent light bulbs are inefficient at converting energy into light. They are so inefficient that in many places there is no a ban on the sale or manufacture of incandescent light bulbs in favor of higher efficiency CFLs, LEDs, or halogen lights.