<span>The answer is d. front. A front is the narrow region between two air masses of different densities. The interaction of the air masses cause the mass that is less dense to rise. Once air rises it cools and condenses to form clouds and eventually leads to precipitation. Using cold fronts as an example, the denser mass of cold air forces the lighter warm air to rise. </span>
Answer:
Option C
Explanation:
In general, the amount of nutrient served to an adult is equal to 50% of the nutrient served to adults. The amount of calories consumed by an adult is equal to 2000 to 2800 calories per day. Therefore, the calories required by a young kid is equal to 1000 to 1400 calories per day. Considering this, a nutrient feed of 3 tablespoon is sufficient to cater the calorie requirement of young children of age above 3 years
Hence, option C is correct
Answer: Option B) Lipids generally don't dissolve in water.
Explanation:
All lipids are small biomolecules that are insoluble in water but dissolve readily in nonpolar organic solvents, and contain fatty acids, sterols. So, not all lipids are made of fatty acids and glycerol, and the chemical properties of each lipids depends on their composition.
Thus, all lipids share the characteristics of not dissolving in water.
Answer:
The correct equation to sum up the process of photosynthesis is:
6 CO2+ 6 H2O → C6H12O6 + 6O2
Photosynthesis can be described as a process which plants use to produce their own food. In this process, carbon dioxide and water get converted into sugar (glucose) and oxygen. Light energy from the sun is needed for this reaction to occur.
The excess oxygen produced by this process is released into the atmosphere. The sugar made is used as fuel by the plant.
Directional selection occurs when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other. ... Directional selection does the “heavy lifting” of evolution by tending to move the trait mean toward the optimum for the environment.
