Answer:
enzymes are protein that increase the rate of a reaction by decreasing the amount of energy needed to get a reaction started
Explanation:
enzyme inhibitors give substances that bind to an enzyme and change its shape or block its ability to interact with the chemical reaction
Answer:
Rocks
Explanation:
Rocks normally stop streams
Marshmallows are probably so delicious because of several important factors. They are fluffy, soft, and oh-so sweet. They melt in your mouth and taste absolutely heavenly with chocolate and graham crackers. Or throw a couple in your hot chocolate. There's no wrong way to eat them and they're pretty cheap too.
There's been a lot of bad news for polar bears recently. In 2007, for example, scientists reported that if global warming continues unabated, the population could drop two-thirds by 2050.