Answer : What are density dependent limits on population?
Density Dependent Limiting Factors
The density dependent factors are factors whose effects on the size or growth of the population vary with the population density. There are many types of density dependent limiting factors such as; availability of food, predation, disease, and migration.
A country is experiencing neagtive population growth which of the following would help stabilize their population in the long term?
A. Decrease the death rate
B. Increase the birthrate
C. Decrease the birthrate
D. Maintain both birth and death rate at their current levels
Answer:
A.
Explanation:
Decreasing the death rate of a nation carries with it a healthier population, as people are not dying as quickly whether that be due to greater education, more food, better sanitation or otherwise. A higher birthrate would likely only amount to more restrictions for a nation that it evidently cannot sustain due to its declining population. Essentially; improve the quality of life, not the quantity of it, the more people live, the more children they will eventually have instead of fighting for their lives to survive.
What happens to the superheated water leaving the reactor?
A) it is pumped into a lake or river.
B) its heat energy is changed to mechanical energy.
C) it causes the turbine to turn.
D) it turns steam when realesed
Answer:
D) it turns steam when released
Explanation:
In a nuclear reactor, the superheated water leaving turns to steam when released and it in turn is channeled to turn turbines in order to produce electricity.
A nuclear reaction is used to generate current through a series of processes. The reaction produces a significant amount of heat energy. This heat energy is used to superheat water and convert it to steam. The steam is then channeled to drive turbines whose mechanical rotation produces electricity.Answer:
D
Explanation:
i had this in my quiz