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What are the 3 highest sources of world energy?
Globally we get the largest amount of our energy from oil, followed by coal, gas, then hydroelectric power
Globally we get the largest amount of our energy from oil, followed by coal, gas, then hydroelectric power
See lessWhy are male birds more beautiful?
Scientist Charles Darwin gave many arguments about this issue in his 'Mate Selection Theory' (Theory of Sexual Selection). He wants to say that some differences between men and women are created because they are helpful in the evolution of a species. Many biologists believe that the purpose of thisRead more
Scientist Charles Darwin gave many arguments about this issue in his ‘Mate Selection Theory’ (Theory of Sexual Selection). He wants to say that some differences between men and women are created because they are helpful in the evolution of a species. Many biologists believe that the purpose of this difference is to protect the female mate from possible attacks by enemies.
See lessThe female bird has to sit in the nest all the time to hatch the chicks from the egg. At this time, he has almost no defense system. Therefore, the color of female birds is usually plain, so as not to be easily noticed by chil-vultures. In contrast, their male counterparts have attractive colors and decorations
What is the present world population now?
World population has reached 8 billion people on November 15, 2022 according to the United Nations.
World population has reached 8 billion people on November 15, 2022 according to the United Nations.
See lessWhat are the benefits of using renewable energy?
Benefits- - Consequently replenished and will never run out. - Produce heat and electricity with a very low CO2 emission. - Clean and improved quality of the environment. - Healthy and longer life.
Benefits-
See less– Consequently replenished and will never run out.
– Produce heat and electricity with a very low CO2 emission.
– Clean and improved quality of the environment.
– Healthy and longer life.
Give me some example of renewable energy !
Examples- - Sunlight. of solar energy. - Tidal energy. - Wave energy. - Rain. - Wind. - Geothermal energy.
Examples-
See less– Sunlight. of solar energy.
– Tidal energy.
– Wave energy.
– Rain.
– Wind.
– Geothermal energy.
What are the important area of renewable energy?
4 important areas of renewable energy- 1. Electricity generation. 2. Air and water heating. 3. Transportation. 4. Rural energy service.
4 important areas of renewable energy-
See less1. Electricity generation.
2. Air and water heating.
3. Transportation.
4. Rural energy service.
What are the potentiality of solar PV?
The present potential of solar PV is 125,000GW. Which is 6000 times of present energy demand. Presently we are producing 2.25GW power.
The present potential of solar PV is 125,000GW. Which is 6000 times of present energy demand. Presently we are producing 2.25GW power.
See lessWhat are the major benefits of going solar?
Major benefits are- - Creating energy independence. - Profit from the first day. - Secured investment. - Guaranteed performance.
Major benefits are-
See less– Creating energy independence.
– Profit from the first day.
– Secured investment.
– Guaranteed performance.
How solar PV is growing? How solar PV alone can supply the future energy demand?
In 2018 solar PV was 55% of newly installed renewable sources. Solar PV has the potential of 125,000GW which is 6,000 times of present demand for electricity in the world. That's why we can hope alone solar PV can supply the future energy demand.
In 2018 solar PV was 55% of newly installed renewable sources. Solar PV has the potential of 125,000GW which is 6,000 times of present demand for electricity in the world. That’s why we can hope alone solar PV can supply the future energy demand.
See lessWhat is the main theme of the documentary “An Inconvenient Sequel”?
The main theme of the documentary was -“To warn human being about the impact of their work on environment. Since most of the city will go under water due to global warming. And to switch to the renewable energy source.”
The main theme of the documentary was -“To warn human being about the impact of their work on environment. Since most of the city will go under water due to global warming. And to switch to the renewable energy source.”
See lessWhat is the main theme of the documentary “An Inconvenient Sequel”?
The main theme of the documentary was -"To warn human being about the impact of their work and environment. Since most of the city will go under water due to global warming. And to switch to renewable energy source."
The main theme of the documentary was -“To warn human being about the impact of their work and environment. Since most of the city will go under water due to global warming. And to switch to renewable energy source.”
See lessWhat are the main 4 layers in a solar cell? How many cells can forma PV array?
4 Layer are- ZnO, CdS, CIGS, Mo 36-72 Cell form a module. And 10 modules form an array. So an array contain 360-720 number of cell.
4 Layer are- ZnO, CdS, CIGS, Mo
36-72 Cell form a module. And 10 modules form an array. So an array contain 360-720 number of cell.
See lessWhat are the main renewable energy sources globally and in Bangladesh?
The main renewable energy source- Globally and in Bangladesh are- Solar PV, wind energy, hydroelectricity, and biomass.
The main renewable energy source-
See lessGlobally and in Bangladesh are- Solar PV, wind energy, hydroelectricity, and biomass.
What is the main source for electricity generation globally and in Bangladesh?
The main source of electricity generation- Globally: Coal, Gas, Oil In Bangladesh: Coal. Gas
The main source of electricity generation-
See lessGlobally: Coal, Gas, Oil
In Bangladesh: Coal. Gas
How fresh water supply will be affected with global warming and rising oceans?
Global warming results in sea level rise, which will contaminate fresh water. Because sea level will enter into the river.
Global warming results in sea level rise, which will contaminate fresh water. Because sea level will enter into the river.
See lessWhat was the global energy demand in 2015 and what might be in 2035?
Global energy demand in 2015 was 19TW. In 2035 it may become 30TW.
Global energy demand in 2015 was 19TW. In 2035 it may become 30TW.
See lessHow sea level has been rising and what will happen if all the Ice melts?
The sea level has risen 2.5m in the last few decades. And if all the ice melts, major cities and countries will go under water and Antarctica may become habitable.
The sea level has risen 2.5m in the last few decades. And if all the ice melts, major cities and countries will go under water and Antarctica may become habitable.
See lessWhat is the present fuel age? How it is changing?
The present fuel age is- the "Hybrid Fuel Age". And it is changing to renewable energy.
The present fuel age is- the “Hybrid Fuel Age”. And it is changing to renewable energy.
See lessWhat amount of the power of sunlight incident on the earth?
The power of sunlight incident on the earth is about 125,000TW. That is over 6,000 times more than the world's current demand;
The power of sunlight incident on the earth is about 125,000TW. That is over 6,000 times more than the world’s current demand;
See lessWhat is the present demand for electricity in the world?
Approximately 25,300 terawatt-hours in 2021.
Approximately 25,300 terawatt-hours in 2021.
See less