It is known as stimulus or the plural form stimuli. It can be external or internal.
The correct answer is the marble would weather more rapidly.
The weathering of the rock can be defined as the procedure of the erosion of the rock by various agents. The marble is a metamorphic form of the limestone. The limestone is easily affected by the hot and the humid climates. The rain and the atmospheric carbon dioxide get mix together form mild acids, this acid react with the limestone and causes the chemical changes. As a result, the marble is subjected to erosion in hot and humid climate.
The correct answer is The effect of oil spills on marine animals.
Environmental scientists deals with the study of nature and the interaction of nature with other organisms. Any effect on environment caused by any means is studied by environmental scientist.The effect of oil spills is harmful on marine animals and this is known to us because it was studied by the environmental scientists. This is also apart of environmental science.