Explore topic-wise InterviewSolutions in Current Affairs.

The name of such a disease is AIDS (Acquired Immunodeficiency Syndromes) and it is caused by HIV (Human Immunodeficiency Virus).

Active immunity

The name of such a disease is AIDS (Acquired Immunodeficiency Syndromes) and it is caused by HIV (Human Immunodeficiency Virus.

Weakened/inactivated pathogens or antigens are inoculated in the body. Body develops immunity against antigen. Antigens are destroyed by primary response and memory cells remain there to act during secondary response. 

Tobacco stimulates the release of adrenaline hormone due to the presence of nicotine in it. This raises the blood pressure. Smoking releases carbon mono-oxide. This reduces the haem bound oxygen concentration and causes the oxygen deficiency in the body.

Smoking increases the carbon monoxide (CO) content in the blood which has greater affinity to haemoglobin than oxygen. CO forms a stable bond with haemoglobin and does not allow binding of oxygen. Smoking also damages alveolar walls, which reduces respiratory surface (emphysema).

Yes, passive smoking is also dangerous as the active smoking because the person is exposed to the same harmful effects of smoking like emphysema, bronchitis, lung cancer, urinary bladder cancer or even peptic ulcer.

1. The fluid secreted by the mammary glands soon after childbirth is called colostrum.

2. Colostrum is the sticky and yellow fluid. It contains proteins, lactose and mother’s antibodies, e.g. IgA. 

3. The fat content in colostrum is low. 

4. The antibodies present in colostrum helps in developing resistance for the newborn baby at a time when its own immune response is not fully developed

1. Syphilis is a sexually transmitted veneral disease caused by a Spirochaete bacterium Treponema pallidum.

2. The site of infection is the mucous membrane in genital, rectal and oral region.

3. Symptoms of syphilis:

• Primary lesion known as chancre at the site of infection. 
• They are seen on the external genitalia in males and inside the vagina in females. 
• Skin rashes accompanied by fever, inflammed joints and loss of hair. 
• Paralysis 
• Degenerative changes in the heart and brain.

Skull has many sutures (type of immovable joints) present, out of which four prominent ones are: 

1. Coronal suture: Joins frontal bone with parietals. 

2. Sagittal suture: Joins two parietal bones. 

3. Lambdiodal suture: Joins two parietal bones with occipital bone.

4. Lateral/squamous sutures: Joins parietal and temporal bones on lateral side.

Zveomatic bone is commonly known as Cheek bone.

The largest and strongest facial bone is Mandible

The smallest facial bone Lacrimal bones

Number of bones in thoracic cage 25

Given, P₁ = 5 atm

T₁ = 0 + 273 = 273 K

T₂ = 546 + 273 = 819 K

V₁ = V

V₂ = \(\frac{1}{3}\)V

P₂ = ?

According to ideal gas equation,

\(\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}\)

\(\therefore\) P₂ = \(\frac{P_1V_1T_2}{T_1V_2}\) = \(\frac{5\times V\times819}{273\times\frac{V}{3}}\)

= \(\frac{5\times V\times819\times3}{273\times V}\) = 45 atm.

(iii) on the basis of molecular targets.

(D) Dilute aqueous solution of boric acid

Analgesics:

• Drugs which give relief from pain are called analgesics. 

e.g. Aspirin, paracetamol 

• Most of the analgesics are antiinflammatory drugs, which kill pain by reducing inflammation or swelling.

Phenacetin is an antipyretic, while the rest are tranquilizers.

3,4-dibromo-3,4-dimethylhexan-1-ol.

Salicylic acid has pain-killing and fever reducing properties.

Correct option is (B) analgesic

i. Aspirin is acetyl derivative of salicylic acid. It is widely used as an analgesic. 

ii. It has a fewer side effects than salicylic acid. However, it retains stomach irritating side effects of salicylic acid.

Negative E^Θ values for Mn²⁺ and Zn²⁺ are related to stabilities of half filled and fully filled configuration respectively. But for Ni²⁺, E^Θ value is related to the highest negative enthalpy of hydration.

The atmosphere contains vapour. The air that has greater amount of vapour is called humid air.

Weather:

• Weather is the day to day condition of the atmosphere at any place 
• Refers to short periods like a day, a week, a month etc.,
• Sunshine, temperature, cloud cover, wind, fog condition, air pressure, humidity precipitation are some weather elements.

Climate:

• Average condition of the weather of a place or a region.
• Determined by measuring weather elements for a long period of time usually for 35 years
• Latitude, Altitude, direction of winds, distance from the sun, Ocean currents are some of the factors determining climate.

Correct option is A) humid

1. Even though it is hotter, we do not sweat as much in Hyderabad. 

2. In places near a river or in coastal regions the weather in summer is sweaty. 

3. If we are in coastal region in summer we would feel very sweaty in addition to feeling hot winds. 

4. That is why Vijaywada is more humid than Hyderabad.

1. The place is situated at the equatorial region is hot. 

2. The places near a river or in coastal regions the weather in summer is sweaty.

Answer is: Bay of Bengal.

(a) Polar regions

Seasonal winds:

• Winds which change their direction according to season in a year. Also called monsoon winds. 
• Example North East and South west monsoon winds.

Local winds:

• Winds which blow over a small area only during a particular time of a day or short period of a year. 
• Example Land and Sea breezes.

We know that in the equatorial region it is very hot and in the polar region, it is very cold.

Occupations practiced in hot regions are animal husbandry and agriculture.

A man who went for his work heard Peter moaning and found him clinging to the side of the great wall.

(c) temperature

The distribution of temperature is shown by means of Isotherm

When Peter stopped near the dikes he noticed that there was a sound of trickling water and saw a small hole in the dike, through which a tiny stream was flowing.

Holding his finger in the hole on the dike Peter crouched on a stone, bending his head. He closed his eyes but did not sleep. He rubbed his hand and thought he would manage to stay throughout the night, though no one came to his rescue until morning.

Isohel represents places of equal sunshine

1. Peter’s father

2. Peter’s mom

3. Peter

4. Peter’s father

5. Peter’s mom

Peter’s mother thought that he was spending that night with his friend and that she would scold him next morning for staying away from home without permission.

i. Weather.

ii. Climate.

iii. Snow.

iv. Moisture.

Mass of the vehicle (m) = 300 kg 

Velocity of the vehicle (v) = 90 km/h = 90 × \(\frac{5}{18}\) m/s = 25 m/s 

Momentum = mv = 300 × 25 = 7500 kg.m.s^-1

1. Peter

2. Peter

3. Peter

4. Peter

5. Peter

i) Newtons first law of motion. 

ii) Net force. The position of object is changed due to net force only.

The tendency of matter that resists changes in its state of motion or rest is known as inertia.

Action and reaction act on different bodies and not on the same body so they do not cancel each other. A wall sends back a ball which hits it, i.e., the ball acts on the wall and the wall reacts on the ball.