Types of system?

Raiyan Zaib answered  •  3 hours ago
Four specific types of engineered system context are generally recognized in systems engineering : product system , service system , enterprise system

Four particals each having q charge are placed at the vertics of a square of side a. The value of the electric potential at the mid points of the one side will be?

Noushaba_Mirza answered  •  4 hours ago
In general, electric potential ( V ) due to a point-charge Q at a distance r is given as

V=14πϵoQr

Assuming all four electric charges have same nature.

Therefore, the total electric potential (i.e. a scalar quantity) due to four equal point-charges each Q at the center of square of side A is obtained by setting r=A/2–√ in above formula

=4×14πϵ
... more

?

Noushaba_Mirza answered  •  4 hours ago
The menstrual cycle is complex and controlled by many different glands and the hormones that these glands produce. The four phases of the menstrual cycle are menstruation, the follicular phase, ovulation and the luteal phase. Common menstrual problems include heavy or painful periods and premenstrual syndrome (PMS).

?

Noushaba_Mirza answered  •  4 hours ago
Primary sewage treatment is a physical process that removes large impurities while secondary sewage treatment is a biological process that removes organic matter of sewage through the action of microbes.

What is difference between standing crop and standing state?

Asfiya answered  •  5 hours ago
Standing state is amount of inorganic nutrients found in an ecosystem.It represents part of non-living matter. Standing crop is certain mass of living material at a particular time. it is a measure of biomass of living organisms. [refer class XlI biology NCERT chapter - Ecosystem ]

Aldosterone is secreted by the
  • a)
    testes
  • b)
    Nephron
  • c)
    Adrenal cortex
  • d)
    Posterior pituitary
Correct answer is option 'C'. Can you explain this answer?

Asfiya answered  •  5 hours ago
Aldosterone is the main mineralocorticoid steroid hormone produced by the zona glomerulosa of the adrenal cortex in the adrenal gland.
It balances sodium and potassium levels in blood.
So, option-C is the correct answer.

Read the following text and answer the following question on the basis of the same:
Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.
Q. ___________is the first major cause of species extinction.
  • a)
    Coextinction
  • b)
    Over exploitation
  • c)
    Habitat destruction
  • d)
    Alien species invasion
Correct answer is option 'C'. Can you explain this answer?

Stepway Academy answered  •  6 hours ago
Habitat destruction is an important cause of known extinctions. As deforestation proceeds in tropical forests, this promises to become THE cause of mass extinctions caused by human activity.
All species have specific food and habitat needs. The more specific these needs and localized the habitat, the greater the vulnerability of species to loss of habitat to agricultural land, livestock, roads and cities. In the future, the only species that survive are likely to be those whose habitats are highly protected, or whose habitat corresponds to the degraded state associated with human activity (human commensals).

Eustachian tube is supported by :-
  • a)
    Elastic cartilage
  • b)
    White fibros cartilage
  • c)
    Calcified cartilage
  • d)
    Hyaline cartilage
Correct answer is option 'A'. Can you explain this answer?

Asfiya answered  •  11 hours ago
Eustachian tube also called auditory tube which is supported by elastic cartilage giving it shape , providing shape for the lateral region of the external auditory meatus and medial part of the auditory canal.

The pH values of rainwater collected from two cities A and B were found to be 6 and 5 respectively.The water of which city is more acidic?

Asfiya answered  •  11 hours ago
The rain water collected from city B is more acidic because acidic strength increases as the value of PH decreases. Contrast to this basic strength increases as the value of PH increases.
Fetching relevant content for you