What does this rising heat and resulting convection cycle do to our rigid lithosphere

The movement of heat by convection in the asthenosphere causes the rock of the mantle to slowly move in huge streams. ... As the rock of the asthenosphere moves in different directions, it carries parts of the lithosphere along with it. The lithospheric rock can't stretch, so it breaks into pieces--forming the plates.

Explanation:

The movement of heat by convection in the asthenosphere causes the rock of the mantle to slowly move in huge streams

Explanation:

As the rock of the asthenosphere moves in different directions, it carries parts of the lithosphere along with it. The lithospheric rock can't stretch, so it breaks into pieces--forming the plates.

Hope this helped O_o

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.