What Is in Water in the Ground That Helps It

question 22

Multiple Choice

What is in water in the ground that helps it dissolve limestone?

• A) nitric acid from nitrogen in the air combining with rainwater
• B) carbonic acid formed from carbon dioxide in air combining with rainwater
• C) nothing-pure water has nothing in it, so it can dissolve more
• D) oxygen-the reactivity of oxygen oxidizes the calcium of limestone
• E) sand-the grains are much harder than limestone, making it more abrasive

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Definitions:

Ex-Rights Date

The first day a stock trades without the right to receive a specific dividend or distribution announced by the company.

Stock Trades

The act of buying, selling, or exchanging shares of stock in the financial markets.

Holder-of-Record Date

The date set by a corporation by which an individual must be registered as a shareholder to be eligible to receive dividends or distributions.

Stock Rights

Entitlements issued to existing shareholders, giving them the privilege to buy more shares of the corporation at a future date at a predetermined price.