In a science experiment, equal-sized populations of two species of earthworms are placed in a terrarium filled with soil. Abiotic factors such as temperature and water supply are kept constant in the terrarium, as is food in the form of bread scraps. The population of each species is observed and counted each day. In agreement with the competitive exclusion principle, what is the MOST LIKELY outcome of the experiment over time?
A. Only one population will thrive; the other population will decrease to zero.
B. Both populations will reach the same size, which is the carrying capacity of the terrarium for earthworms.
C. One population will be about twice the size of the other.
D. Both populations will reach the same size, which is about half the carrying capacity of the terrarium for earthworms.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.