Answer:
Hydrogen could become a future energy source as it can be used to create steam, electricity and other forms of energy. Hydrogen is also considered a clean form of energy, as its only product is water, which is harmless.
Explanation:
Answer:
Far less diverse. A prime driver of speciation the development of new species from existing ones is geographical isolation, which leads to the evolution of new traits by subjecting creatures to different selective pressures.
Answer:
Perceptual set
Explanation:
Perceptual set is the tendency to perceive certain things and ignore others, in this case Jill is known as a 'selector' because she has certain expectations and focuses her attention on the loud children instead of the quiet ones.
Answer:
the desk is the answer because the sound wave is propagating through the solid bench.
