Environmental Science
The main reason why vegetables take longer to cook in boiling water at high altitudes is because:

Water boils at a higher temperature with higher altitude
There is less oxygen in the air at high altitude
Saturation vapor pressure decreases with increasing altitude
The temperature of the boiling water decreases with increasing altitude

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Environmental Science
Which of the following statement is incorrect regarding ecological pyramids

The pyramid of numbers is upright in grass land ecosystem
The pyramid of energy is inverted in ocean ecosystem
The pyramid of biomass is upright in grass land ecosystem
The pyramid of biomass is inverted in aquatic ecosystem

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