Which of the following carries a climate signal?

Question

BlackTom AI · Accepted Answer

The question asks which item carries a climate signal. Unfortunately, the provided data includes an answer field listing 'Stalactites' as the correct option, but there are no answer options supplied in the answer_options field to compare or contrast.

Nonetheless, I can explain why stalactites are known to carry climate signals in general. Stalactites (and stalagmites) form through the slow deposition of minerals from dripping water in caves. The chemistry of the drip water — including isotopic ratios of oxygen and hydrogen, trace element concentrations, and growth rates — is influenced by surface climate conditions such as temperature, precipitation, and vegetation, which affect the water that percolates through the soil and rock. As a result, the incremental layers that build up stalactites record these climatic variations over time. By examining the layered structure and performing isotope analyses or trace element profiling, scientists can reconstruct past climate changes.

If there were other options, we would evaluate them against this criterion: does the option pertain to a geo- or paleoclimate proxy capable of preserving environmental signals in its growth or composition? Options like ice cores, tree rings, sediment cores, or corals are classic climate signals as well, while something that doesn’t respond to climate or doesn’t preserve a historical record would be incorrect.

In the absence of the full set of choices, we can affirm that stalactites are among geological features used to infer climate signals, due to their potential to archive environmental information in their mineral layers.

Section Merge: Earth 103N (Spring 2025) Graded Midterm 1

Which of the following carries a climate signal?

View Explanation

Log in for full answers

Similar Questions

Which of these is NOT a source of proxy data used to understand temperature and climate in the past.

Which of the following contains ancient climate information?

In order to understand our future climate, scientists need to understand the past by looking at a time in our geological history when CO2 levels were double what they are today. This is accomplished by:

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler