A scientist heats an unknown substance in a closed system. The graph shows the change in temperature over time. E D Temperature C A Time During which period is the substance changing state? A. During the time labeled D, when the temperature stays the same B. During the time labeled E, when the temperature increases for a third time C. During the time labeled C, when the temperature increases ebarnly

During The time labeled D, when the temperature stays the same

Explanation: none

0

explanation:

488479

rvmoo+478)9.68

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.