Water has special characteristics because liquid water is denser than ice and ice floats on top of liquid water.
Answer: Option A & D
<u>Explanation:</u>
A water molecule is formed by the covalent bonding between two atoms of Hydrogen atom with one atom of Oxygen. In water, the Hydrogen bonds are the one that keeps the water molecule intact.
When the water molecule freezes the bonding becomes weak as they are separated and set apart which makes the liquid water denser than ice. Normally a substance floats if it is less dense. Ice floats because it is less dense than water.
Nitrogen is not a product of photosynthesis
Different stars are different colors depending on the temperature. So, for example, a blue star is hotter than a yellow star such as our Sun.
Beacause prokariyotics are unicellular organisms.
yo its d..............................................
