Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.
The correct answer is option D
The energy in the form of heat is absorbed by the water to convert itself into vapour during the process of evaporation. This energy is then released in the atmosphere when the water vapor gets converted into clouds during the process of condensation. From the start of the water cycle , the heat energy of the sun gets converted into the kinetic energy to raise the water vapour to certain height. After reaching heights Kinetic energy is converted into potential energy and then it is finally released to atmosphere after condensation. In the entire process the total energy remains constant it is just being converted from one form to another.
The correct answer is option e, that is, the thermal energy that one feels when one put the hand on the ground originates from the Sun.
The Earth's energy budget holds for the equilibrium between the energy received by Earth from the Sun, and the energy Earth radiates back after having been dispersed all through the five constituents of the climate system of the Earth and having thus fueled the so-called heat engine of the Earth. This system comprises the Earth's water, atmosphere, ice, all living things, and rocky crust.
Answer:
Explanation:
The four elements been referred to here are hydrogen, oxygen, carbon and nitrogen.
These four elements constitute the majority of the human body because of a combination of factors. Although, some of these factors are the major reasons, for instance the human body is made up of cells which are the basic structures of life. The cell consists of over 70% of water (which is made of hydrogen and oxygen). Also, oxygen is inhaled through the process of respiration which combines with other molecules (such as haemoglobin to form oxyhaemoglobin) in the human body. These among others make oxygen the most abundant element in the human body.
Naturally occurring organisms usually have a high concentration of organic molecules (molecules made of majorly carbon and hydrogen). This makes the human body have a high percentage (after oxygen) of carbon and hydrogen. Also, carbohydrates (which are later converted to glucose) form a large part of our diet and are stored in the body as glycogen (causing the body to have a high amount of carbon and hydrogen atoms).
Nitrogen is an essential part/element found in amino acids which are building blocks of protein. Proteins are involved in several metabolic activities in the body; this makes the abundance of nitrogen the fourth (one of the four) most common element in the body. It should be noted that amino acids also have carbon and hydrogen elements also.
The combination of the factors above among some other factors make the human body comprise mainly of these four elements
Answer:
Grupa chemików z Uniwersytetu Środkowej Florydy pod kierownictwem profesora Fernando Uribe-Romo, odkryła sposób zamiany dwutlenku węgla w paliwo i tlen — naśladując naturalne procesy w jakich rośliny konsumują CO2, czyli fotosyntezę, która z dwutlenku węgla i wody produkuje węglowodany czyli paliwo dla organizmów żywych.
Explanation:
