General Science Questions

The nutrient which provides the maximum energy is Fat. It provides the energy of 9 calories/gram.

Any factor limiting the size of a population whose effect is not dependent on the number of individuals in the population, then such factor is called Density Independent Factor. It is things that the organisms have no control over.

Here in the given options, food shortage and disease are factors that are dependent on the number of population but Floods have no dependency.

Some examples of density independent factors are :: Earth quake, fires, volcanic eruptions, floods, and  all natural calamities.

Primary productivity refers to plants that make their own food using sunlight, water and availability of nutrients. Hence, they are not limited by time.

Both State and Local governments are responsible for regulating noise pollution. Noise pollution refers to the high noise level that we can not bear.

The genetic material of HIV consists of two single stranded RNA molecules.

Photosynthesis process removes carbon dioxide from the atmosphere. Green plants remove carbon dioxide from the atmosphere by photosynthesis. 

The level of carbon dioxide in the atmosphere is maintained by several processes, including photosynthesis, respiration and combustion. 

Nuclear power energy source generates radioactive waste.