Use the figure shown below to complete the following statement: A high-mass protostar remains roughly constant in ________ and increases in ________ as it follows its evolutionary track. 
Definitions:
Forward Contract
A non-standardized contract between two parties to buy or sell an asset at a specified future time at a price agreed upon today, often used for hedging risks.
Canadian Dollars
The currency of Canada, represented as CAD or $.
Gross Recording
An accounting practice where transactions are recorded in full without deducting any related expenses or costs.
Spot Rates
The current market price at which a particular asset can be bought or sold for immediate delivery.
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