What do scientist use to to monitor volcano and hurricane activity.

Seismographs

Explanation:

Scientists use GPS and satellites to measure this deformation and can input this data into models that track the probability of whether an eruption will occur.

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.

helen told me that she hoped i had enjoyed myself.