11 Which indicators test for similar conditions? A) Iodine + pH paper B) Biuret reagent + Benedict's solution C) pH paper + Phenol red D) Phenol red + Sudan IV

The correct answer is - C) pH paper + Phenol red.

Explanation:

Iodine is a reagent and indicator that is used to test confirm the presence of the starch in the sample by producing its characteristic blue-black color.

pH paper is an indicator that helps in telling about the pH level of a specific sample or solution by changing its color.

Biuret reagent is used to test for the presence of protein as it identifies peptide bonds in a solution.

Benedict's solution is an indicator that is used to confirm the presence of simple sugar in the solution or sample.

Phenol red solution is used as a pH scale to identifies the pH value of a sample or solution.

Sudan Iv is used to find the lipids and fats in the sample or solution.

Thus, the correct answer is - C) pH paper + Phenol red test for similar conditions.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.