they study gasses and look for changes in the volcanoes shape. HOPE I HELPED :D
The study is rejected.
Plants detect seasonal changes by temperature and day length.Plants detect seasonal changes by the amount of day light.
Tracer
They use X-Rays from the stars being sucked into them.
It does not appear that vibration testing is being used to detect earthquakes. Scientists have been using accelerometers built in computers to help them detect upcoming earthquakes.
What are the most chemical methods to detect bacteria on hands?
A tilt meter is an instrument that helps scientists detect small changes in a volcano's slope. This can help scientists figure out when a volcano will erupt. hehehe cherry poo bum. hehehe
so scientists can detect smaller objects to study
By using an Oscilloscope
Cancer is 1 illness pets can detect, as far as scientists know, only dogs can detect it.
Their eyes
A chemoreceptor can detect changes in hydrogen ion concentration.
The study is rejected.
detect any changes in the environment (noise level, vibration, temperature)
farting,burping,and sneezing
Plants detect seasonal changes by temperature and day length.Plants detect seasonal changes by the amount of day light.
scientists believe birds detect changes in the temperature and daylight as days get shorter and the amount of light decreases, birds produce certain hormones that seem to trigger the drive to migrate