Which tool to study space is least expensive? a. satellite b. space probe c. ground-based telescope d. human space exploration

Hey there!

The correct answer would be - C. Ground based Telescope.

Hope this helps!

1.the evidene of the reaction

2.yes

3.yes

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.