Question

please help me
Which of the following statements is true?

The Challenger Deep was explored by Picard and Walsh.
Data from Jason-1 will help scientists study deep sea life.
Salinity refers to the amount of salt (NaCl) in the ocean.
All of the above.
None of the above.

Answer 1

Well i know the first one is correct, Jacques Piccard and Don Walsh did descend to the challenger deep (deepest point in the ocean located in the mariana trensh)

Answer 2

Also the third one is definetly correct, So i assume the second one is too (I thought Jason-1 is a sattelite, not sure though)

Answer 3

It's all of the above.

Answer 4

Yes that's correct :)