Geologists monitor active faults closely to assess the risk of future earthquakes.

During the seminar, the professor described how activated complexes briefly form at the top of the potential energy barrier.

Language learners should build active vocabularies through regular practice.

During debugging, I inspected the activation records to find where the variable was corrupted.

The semi-active suspension improved comfort on bumpy roads.

Companies that engage in ultrahazardous activities must carry specialized insurance to protect the public.

Because the fireworks factory engaged in an ultrahazardous activity, the company was held strictly liable for the neighborhood's damages.

Under polarized light, the mineral's optical activities revealed subtle differences between the samples.

During finals week, the library and campus café turned into beehives of activity, with students studying in every corner and friends exchanging notes at long tables.

The research team published detailed measurements of the catalytic activities under varying temperatures.