What is conserved in physical changes
a-shape
b- energy
c-mass
d- density
as soon a possible

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?

At the current rate, a graph of carbon dioxide produced by fossil fuels over time would slope upward slope downward be horizontal be vertical