During summer in the Northern Hemisphere, the Sun appears smaller than at any other time of the year. This is
also the hottest part of the year.
Use your knowledge of seasons to explain this
phenomenon.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

what is shown in the image?

eukaryote

chloroplast

mitochondrion

submitted

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers