3. best explains the ammonia deposits found in ice core samples from the time of the Tunguska Event. The evidence that best supports the validity of this hypothesis is the-
Answer: A,D
Hypothesis 2 and the match between measured and predicted amounts of ammonia best explain the ammonia deposits found in ice core samples from the time of the Tunguska Event.
Both Hypothesis 2 and the match between measured and predicted amounts of ammonia provide compelling explanations for the ammonia deposits discovered in the ice core samples, aligning with the evidence presented.
A) Hypothesis 2
Hypothesis 2 suggests that up to 1% of the object's mass might have been ammonia, which aligns closely with the measured ammonia deposits of 5 micrograms per square meter found in the ice core samples. This hypothesis accounts for the presence of ammonia directly related to the Tunguska Event, making it a strong contender for explaining the observed data.
B) heat produced by fast-moving objects in the atmosphere
While this option mentions a relevant phenomenon, it does not adequately explain the ammonia deposits. The hypothesis notes that heat alone is insufficient to cause the formation of ammonia, meaning this option lacks the necessary connection to the ammonia levels measured in the ice core samples.
C) Hypothesis 1
Hypothesis 1 discusses forest fires as a potential source of ammonia, predicting only 0.1 micrograms per square meter, which is significantly lower than the 5 micrograms measured. Consequently, this hypothesis fails to explain the observed ammonia deposits adequately and does not align with the data.
D) match between measured and predicted amounts of ammonia
This option highlights the critical importance of corroborating evidence. The close match between the predicted ammonia levels based on Hypothesis 2 and the actual measurements found in the ice core samples reinforces the validity of this hypothesis, providing strong support for the explanation of ammonia deposits.
Conclusion
In summary, both Hypothesis 2 and the match between measured and predicted ammonia amounts are essential to understanding the ammonia deposits from the Tunguska Event. While other options either underpredict the ammonia levels or do not establish a direct connection to the deposits, Hypothesis 2 offers a compelling explanation supported by empirical evidence.