How Did Scientists Estimate Variations in Solar Output in the Past,before

question 111

Multiple Choice

How did scientists estimate variations in solar output in the past,before direct measurements?

• A) by measuring carbon-14 concentrations in tree rings
• B) by measuring carbon dioxide concentrations in ice cores
• C) by measuring ozone concentrations in ice cores
• D) by measuring the changing extent of Arctic sea ice
• E) by measuring changes in distribution of terrestrial plants

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Definitions:

Income Before Tax

The total earnings of a company before taxes have been deducted.

Quick Ratio

A liquidity ratio that measures a company's ability to meet its short-term obligations with its most liquid assets, excluding inventory. It is calculated as (Cash + Marketable Securities + Receivables) / Current Liabilities.

Current Ratio

A financial metric that compares a company's current assets to its current liabilities, indicating how well it can cover its short-term obligations.