Massive amounts can lead to the disorder of blood cells ? in other words, leukemia,

If the contaminated water had been supplied to households, the result would have been unimaginable.

The list will be announced regularly to warn cities of deteriorating air quality,

They brought in massive amounts of dirt

We need massive amounts of people to digest our music at once.

Brain cells are normally not sensitive to light. So by introducing light-sensitive proteins into specific types of neurons, we can now selectively control that specific type of neuron by shining light in the brain.