From simplest to most complex it would be atom, molecule, cell, tissue, organ, organ system. Hope this helps!
Answer:
The correct option is C. <u>CO2, H20</u> are both compounds.
Explanation:
Compounds can be described as substances which are produced when atoms of different elements join together through the formation of chemical bonds.
In the option C, both CO2 and H2O are formed by the atoms of different elements. Carbon and two molecules of oxygen join to form carbon dioxide. Hydrogen and two molecules of oxygen join to form H2O. Hence, the correct option is C.
Option A is false because H2 is a substance made up of atoms of same element i.e Hydrogen. Option B is false because N2 is a molecule made up of the same atoms of nitrogen. Option C is false because O2 is made up of the same oxygen atoms.
I dont think so, photosynthesis requires light to carry out.
Answer:
Attractive forces between particles.
Explanation:
Solids keep its shape and volume because of strong attractive forces between the particles.
Other options are incorrect:
Because there is no space between solid particles.
The shape of solid does not depend upon type of particles present.
The shape and volume of solids not depend upon the volume and shape of container.
Properties of solids:
Solids have definite volume and shape.
In solids molecules are tightly pack and very close to each other.
Their melting and boiling point are every high.
The densities of solids are also very high as compared to the liquid and gas.
There are very strong inter molecular forces are present between solid molecules.
It’s characteristic is the need for energy
