Help help help HELPHELP Which one of these would be useful and not useful when You crash land on the moon in your rocket and need to survive explain why it would and would not
1.compass
2.map of constellations
3.rope
4.three flashlights

the flashlight is useful and the map is not

Explanation:

if you crash land on the moon you wont need it you will need the flashlight because of how dark the moon gets

Just take all of them

Explanation:

The more the merrier :

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

1. a tropical dry forest carries out more rapid nutrient cycling