A. Kinetic energy is the energy of motion. B,C,D all describe situations where there is not movement.
Answer:
C. CH4 + 202 – CO2 + 2H20
Explanation:
CH4+O2-CO2+H20
The above equation represents combustion of methane to produce carbon-dioxide and water.
One carbon atom is present on the reactant side as well as on the product side. Four hydrogen atoms are present on the reactant side and two hydrogen atoms on product side. In order to balance this equation, we would multiply water molecule by two. Now there are four atoms of oxygen in the product side but only two on reactant side, so we will multiply oxygen molecule by two on the reactant side. Now the equation is balanced.
The balanced chemical equation is:
CH4+202-CO2+2H2O
This equation obeys the law of conservation of mass as the mass of the reactants is same as that of the products.
Answer:
four haploid cells.
Explanation:
meiosis is a reduction division where the contents are equally divided in two cells and so the genetic material becomes half.
during mitosis he genetic material doubles first and then the cell divides
but for meiosis the cell divides first and the genetic material replicates later in the second phase of cell division,because two divisions take place in one cycle the result is four cells.
Answer:
A very short history of climate change research. The story of scientists discovering climate change is longer than many of us tend to imagine.
We’ve had a sense that what humans do might effect the climate since Antiquity.
