A pet owner dropped some new fish into a pond. Several species of fish lived in the pond, but within a few months, only members of the new

species survived. What best explains why this happened?

A

Too many fish caused an imbalance in the ecosystem, so the food web was affected.

B. All new species have an advantage in an ecosystem.

c. The new species was probably bigger than the other fish in the pond.

D. All of the species were dying out, and the new species was the last to survive.

the answer would be   dignified - apex

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.