White moths were found in huge numbers in the city of birmingham. these moths could be easily camouflaged by the trees. because of sudden industrial development, the trees in the city were covered with soot. how will this change affect the population of white moths?

the population of white moths will decrease.

the population of white moths will increase.

no change will take place in the population of white moths.

the white moths will change their color.

the moths will change their food preference.

The correct answer is option A, The population of white moths will decrease.

Explanation:

Camouflaging techniques used by the moth save them from being identified from their predators Now since the colour of the bark of the tree doesnot remain same due to release of industrial pollution,  the moths can be easily identified by its predators and thus their population count reduces due to extensive predation on being easily identifiable.

the answer is b ) square root of 5

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.