Which job did you recommend to my mom?(she is 45 years old and have 3 univercity diploms)

Remote sensing of the earth's surface and atmosphere may involve the use of what type of instruments?

What should you adjust to make your hard hat fit properly

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?