Scientists think the earth is approximately how old? 2 billion years 3 billion years 4 ½ billion years 6 ½ billion years

4 ½ billion years approximately

Explanation:

The age of the earth is a common question that scientists and enthusiasts have been trying to answer for thousands of years. Nowadays our current level of technology allows us to get an estimated answer analyzing radioactive age-dating from the oldest-known terrestrial and lunar samples and is close to 4.54 billion years.

First of all, Jose and Jessie have a big difference when it comes to physical health and condition. Jessie is not able to perform the same exercises as Jose, neither the same intensity, and they cannot have the same goal.

So, for Jessie improve her flexibility we have to consider low intensity exercises, specifically, aerobic exercises, like walking, dancing, jogging at a low pace, pilates and yoga. Jessie, as a sedentary person most consider to do those aerobic activities three times per week, at least 30 minutes to ensure that she is demanding enough effort from her body, but all at low intensity.

In addition, before and after each session, Jessie must stretch her body, between 15 and 30 minutes, this way she will improve her flexibility and her energy level through aerobic processes.

On the other hand, Jose has to perform more intense exercises, which also involve aerobic respiration. When it comes to flexibility we consider aerobic exercises because they use oxygen as a source of energy, and this will also improve the endurance which is important to improve flexibility.

So, Jose can do Suicids Runs, which is a high performance exercises which sedentary people cannot do. These type of exercises will improve endurance and flexibility, because it will help to muscle elasticity. Also, Jose  will perform side lunges, jumping jacks, squats and push-ups, which are focused in specific part of the body.

For both, we recommend to ingest water-based diets, because it has big importance when it comes to flexibility.