what evidence is there to show that changing sand to glass is a chemical change

Solar power uses cells or panels to absorb the sun's energy. that energy is then used to create electricity. how does this compare to the light dependent reactions of photosynthesis?

Which of these is not used to describe a population? its size its migratory habits the spacing of its members its density

You are a living organism. Which characteristics of life do you exhibit

In a savanna, gazelles, wildebeests, and warthogs eat grasses. Lions and cheetahs eat gazelles and wildebeests. Lions and wild dogs eat warthogs. in what trophic level is each animal within this savanna food web?

Do you agree with the theory that global warming might cause an ice age? Why or why not?

Three ways in which organisms use carbohydrates

A pyramid of energy shows the amount of energy available at each

A bacteriophage injects its DNA into and E. coli which gets intergrated into the bacterial chromosome forming a prophage. What kind of cycle the bacteriophage is undergoing? A lytic cycle B lysogenic cycle C bacterial cycle

Look at the illustration in Figure 25-4. Do you think that the bud on the side of the adult hydra is an embryo? Why? A) No, because budding is a type of asexual reproduction. B) No, because budding is a type of sexual reproduction.

what evidence is there to show that changing sand to glass is a chemical change