An object is placed in the electric field generated by a positive charge. The black arrow shows the direction of the force this field applies on the object.

What must be true for natural selection to heppen

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.

Explain why biological control methods are generally environmentally superior to chemical pest control methods.