Asap ! which topic can be scientifically investigated? a. are butterflies happy when it is sunny? b. how far do butterflies migrate? c. are butterflies beautiful? d. butterflies like cats?

B. How far do butterflies migrate

A, C and D are opinions not facts.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!