Lead can be dangerous when present at just 1ppb (part per billion) in drinking water. An older apartment building finds that 0.1 g of lead has dissolved into the old 1000 L water heater. Is the water safe to drink? Show your work! ASAP WITH EXPLANATION PLEASE

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

where are the choice options?

the answer is d. matter from the air combined with the steel wool.