Question

(04.02 mc)
dissolved oxygen is very important for the survival of aquatic life. which of the abiotic factors influence dissolved oxygen?
density, sunlight, and precipitation
density and sunlight
temperature, density, and salinity
temperature, salinity, and sunlight

question 3(multiple choice worth 3 points)
(04.02 mc)
a species of bush has very long roots that allow it to absorb large quantities of water and nutrients from the nutrient - rich soil. in which of the following biomes would this bush be most likely live?
temperate deciduous forest
temperate shrubland
tropical rainforest
tundra

Explanation:

For the first question, temperature affects the solubility of oxygen in water (colder water can hold more oxygen), salinity impacts the density and thus oxygen - holding capacity, and sunlight affects photosynthesis by aquatic plants which can influence oxygen levels. For the second question, the temperate deciduous forest has nutrient - rich soil and sufficient water for a bush with long roots to thrive.

Answer:

1. Temperature, salinity, and sunlight
2. Temperate deciduous forest