Answer:
Biofuels like fuel from microalgae are very costly as compared to fossil fuels.
Explanation:
The cost of biofuels is too high as compared to that of fossil fuel. For instance,
the cost of 1 gallon of algal fuel is $32.81 per gallon while cost of diesel is $2.9 -3.2 per gallon.
However, biofuels are very environment friendly as compared to that of fossil fuels.
I think the best answer would be white blood cells
Answer: it would be natural selection
Explanation:
Answer:
attract, repel, repel
Explanation:
I don't understand the second one. I would have to be in your class to understand what its saying exactly sorry.
