GEOLOGY

EARTH SCIENCE

EARTHQUAKES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why do spiders and frogs sense an earthquake before humans do?
A
They sense changes in air pressure
B
They sense changes in water pressure
C
They notice rats and snakes leaving cities
D
They detect ground vibrations
Explanation: 

Detailed explanation-1: -Animals may sense the ionization of the air caused by the large rock pressures in earthquake zones with their fur. It is also conceivable that animals can smell gases released from quartz crystals before an earthquake.

Detailed explanation-2: -The cats may sense quakes ahead of time because they have a wider range of hearing than humans . Bees stop flying around and go to hive. Even snakes can sense earthquakes from 120 km away. Scientists are developing ways to predict earthquakes by observing erratic behavior in snakes.

Detailed explanation-3: -Vibrational communication is an ancient sensory modality and it is widespread in the animal kingdom where it has evolved several times independently. It has been reported in mammals, birds, reptiles, amphibians, insects, arachnids, crustaceans and nematode worms.

Detailed explanation-4: -This is how snakes hear. They do not have external ears (which you can see). They only feel the vibrations on the ground.

There is 1 question to complete.