Migration is a type of movement that changes population size, and bird Migration and Isotopes Tracking animal migration is a difficult task. Given these facts, what undergoes a movement that changes population size among the following options: - Wasps - camels - sheep - insects - animals - sharks - birds - ducks
birds

(Question)
Wiring requires an electrical conductor, and most electrical conductors, such as wires, are made of copper or gold. Given these facts, wiring requires copper or what among the following options: - LEDs - energy - H20 - fibers - SO2 - motors - gold - tube
(Answer)
gold

Ques: Brain cells die quickly if their oxygen supply is cut off, and without proper brain functioning the body dies. Given these facts, what happens to the body without oxygen among the following options: - grows - dies - reproduces - hunts - anemia - pain - damage - death
Ans: dies

(Q).
Damming a river can cause a lake to form, and there is no spillway at Lake Tahoe Dam. Given these facts, what can affect the level of a lake among the following options: - boat traffic - flooding - boat shipping - erosion - Pollution - salinity - over fishing - spillways
(A).
spillways

Ques:When the seasons change from the summer to the fall , the amount of daylight will decrease, and then the days become colder and the number of daylight hours decreases. Given these facts, what do days become in fall among the following options: - rainy - ligt - cold - stormier - colder - hotter - longer - air cools

Ans:colder

Adding salt to a solid decreases the freezing point of that solid, and freezing point depression is a colligative property. Given these facts, what effects the colligative properties of solids among the following options: - salts - seasons - solutes - size - a prism - forces - fields - Alcohol
salts