Question Discussion & Solution

Key Points 

Spleen is an organ on the left side of the abdomen below the stomach. 

It performs two major functions:

1. Storage of blood - Blood vessels of spleen can alter their thicker and become wider or narrower depending on the situation. In case of emergency situations like trauma & severe injuries where a lot of blood gets lost, the spleen expand its vessels and hold the blood. This reserve blood is then transported to the organ where blood is required. For this reason the spleen is also called the blood bank of human body.
2. Filtration of blood - Spleen filters the blood & removes the old & dead RBCs. It acts like a maze from which healthy RBCs can easily pass while the old & dead RBCs get stuck in it. These are then broken down in the spleen by macrophages. For this reason the spleen is also called as The Graveyard of RBCs.

Additional Information 

Heart:

• The heart is a mesodermally derived organ, that is present in the thoracic cavity, in between the two lungs, slightly tilted to the left. It has the size of a clenched fist. It is protected by a double-walled membranous bag, pericardium, enclosing the pericardial fluid.

Liver:

• The liver is the largest gland of the human body. It performs the function of detoxification of harmful substances in the body
• For example, it converts harmful ammonia into urea,  It also breaks down alcohol and other such substances in the blood. 

Bone marrow :

• Bone marrow refers to the tissue located in the hollow interior of long bones. It is composed of adipose tissue, areolar tissue, and blood cells.
• Bone marrow is mainly of two types – red and yellow

For alphabet: increase alphabet by + 2

B + 2 → D + 2 → F + 2 → H + 2 → J + 2 → L

For Number: multiply by × 2

2 × 2 = 4

4 × 2 = 8

8 × 2 = 16

16 × 2 = 32

32 × 2 = 64

The correct answer is Yash Dhull.

Key Points

• Yash Dhull became only the third Indian batsman to score a century at the U19 World Cups.
• ICC Under 19 World Cup:
  • The ICC Under-19 Cricket World Cup is an international cricket tournament organized by the International Cricket Council (ICC).
  • It is contested by national under-19 teams.
  • The first edition was held in 1988, as the Youth World Cup.
  • It was not staged again until 1998. Since then, the World Cup has been held as a biennial event.
  • India has won the World Cup on a record 5th times and India is the most successful team.
  • After India, Australia has won 3 titles.
    • Format: 50 overs
    • First edition: 1988 (Australia)
    • Latest edition: 2020 (South Africa)
    • Next edition: 2022 (West Indies)
    • Number of teams: 16
    • Current champion:  Bangladesh (1st title)​ 

Additional InformationInternational Cricket Council:

• Predecessor: Imperial Cricket Conference (1909 - 1965), International Cricket Conference (1965 - 1989)
• Formation: 15 June 1909
• Headquarters: Dubai.
• Members: 106
• Chairman: Greg Barclay(New Zealand)
• Deputy Chairman: Imran Khwaja (Singapore).

The correct answer is Fossil fuels.

Key Points

Non-Renewable Resources Examples

• Fossil Fuel
• Coal
• Rare earth elements
• Petroleum products
• Uranium

Thus, Fossil fuels are a non-renewable source of energy.

Additional Information 

Types of Renewable Energy

Solar Energy:

• ​The radiant light and heat energy from the sun is harnessed with the use of solar collectors.
• These solar collectors are of various types such as photovoltaics, concentrator photovoltaics, solar heating, (CSP) concentrated solar power, artificial photosynthesis, and solar architecture.
• This collected solar energy is then used to provide light, heat, and different other forms of electricity.

Wind Energy:

• The energy we get from winds is known as wind energy.
• For this, windmills have been used for hundreds of years to pump out water from the ground. We use large tall wind turbines that allow winds to generate electricity.
• The natural airflow on the surface of the earth is used to run the wind turbines.
• The most preferred locations for these wind turbines to be installed are the areas which and strong and have constant airflows on offshore and sites that are at high altitudes.

Hydroelectricity:

• According to statistics, hydroelectricity generated around 16.6% of the global energy resources and constituted about 70% of all the renewable electricity.
• This energy is another alternative source of energy that is generated by the construction of dams and reservoirs on the flowing water, the kinetic energy from the flowing water is used to run the turbines which generate electricity.
• Tidal power converts the energy of tides and Wave power which captures the energy from the surface of the ocean waves for power generation.
• These two forms of hydropower also have huge potential in electric power generation

Geothermal Energy:

• It is the energy that is generated from the thermal energy which is stored in the earth.
• The heat energy is captured on sources such as hot springs and volcanoes and this heat is directly used by industries for heating the water and other purposes.

Bio-Energy:

• This type of energy is derived from biomass which is a type of biological material derived from living organisms and plant-derived materials which are called lignocellulosic biomass.
• Biomass can be directly used via combustion to produce heat and indirectly it can be used to convert to biofuels.
• Biomass can be converted to other usable forms of energy such as transportation fuels like ethanol, biodiesel, and methane gas.

Here the pattern is,

Sum of the three digits of a number is equal to 5.

203 – 2 + 0 + 3 = 5,

500 – 5 + 0 + 0 = 5,

600 – 6 + 0 + 0 = 6

401 – 4 + 0 + 1 = 5