Which evidence suggests that the materials in the asthenosphere are near their melting point? Choose the correct answer. The asthenosphere is made of lighter elements.

The temperature of core samples taken from the asthenosphere is near 500 K.

The velocity of seismic waves increases suddenly when they enter the asthenosphere.

The velocity of seismic waves decreases suddenly when they enter the asthenosphere.

The asthenosphere is made of lighter elements.

Explanation:

The asthenosphere has obtained its name from Greek word called asthenis, which mean weak. The strength of asthenosphere is lower than that of overlying lithosphere. If the temperature of lithosphere raises high enough then asthenosphere will melt.  This layer is ductile and deforms very easily.

sry but any answer choices

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.