According to the scientific view, about how many years ago did life on earth begin?
a. 3.5 million years ago
b. 3.5 billion years ago
c. 350,000 years ago

The answer is B. 3.5 billion years ago.

Explanation:

You can search it up, some say 3.7 billion years ago, but the fact that it says "billion" gives you your answer. I also have image of the answer being correct on my quiz. Have a good day to those I have helped.

the correct answer is: d. the saltine and pretzel are made of flour, yeast, and baking soda, and salt. the pecan contains no flour but it does contain fats. the pecan is a nut that can be consumed as a healthy snack. first of all, pecans are a source of fat (monounsaturated fat), but they provide less fat than some other nuts. pecans are a rich source of dietary fiber, manganese magnesium, phosphorus, thiamin, vitamin e…

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.