True
Fossil fuels like coal and petroleum takes millions of years to form. The rate of usage of fossils is not equal to its formation. As the rate of formation is slow it is important to use energy in an efficient way so that it is not consumed in a wrong way. The transformation of energy should be more efficient to avoid the wastage of energy. By doing this we can decrease the consumption of fossil fuels as it cause pollution in the environment. The burning of fossil fuel releases carbon dioxide, nitrogen oxide ,and other harmful gases which is injurious to the health of people. So, the fossil fuel should be used in a decreased manner.
Answer: c not all cells have a nucleus (prokaryotic cells don’t)
Explanation:
Answer:
Unequal.
Explanation:
The severity of chromosomal abnormalities in these two chromosome are unequal that are equal in length and size but unequal in gene number are because the gene number are different from one another. If the size of gene increase or decrease from the normal range then it will leads to chromosomal abnormalities in the cell so the cells that has normal gene number has normal chromosome as compared to those cells where abnormal gene is present so the chromosomes are abnormal.
By using sunlight, it evaporates the water. As it evaporates, the water vapor rises into the air and it creates clouds.
Answer:
Energy transfer is the movement of energy from one location to another. For example, when electricity moves from a wall plug, through a charger, to a battery.
Energy transformation is when energy changes from one form to another – like in a hydroelectric dam that transforms the kinetic energy of water into electrical energy.
While energy can be transferred or transformed, the total amount of energy does not change – this is called energy conservation.
Explanation:
