Erosion causes deposition, and erosion is caused by water, wind and traffic. Given these facts, water can cause what among the following options: - flooding - Dehydration - depositon - Pollution - contamination - Heat energy - friction - evaporation
depositon

(Question)
Bottleneck effect occurs when a population suddenly gets much smaller, and population growth is reduced by external migration. Given these facts, bottleneck effect can occur with among the following options: - external migration - direct damage to the lungs - Movement of an air mass - competition - if humans disturb bears - competing for resources - Plant growth is reduced - Temperature changing
(Answer)
external migration

Ques: Looking at bright objects has a negative impact on the eyes, and like the retina of the eye, the intense light of the Sun can burn the imager damaging the camcorder. Given these facts, what does looking at bright objects do to the retina among the following options: - It expands - It decreases - Change colors - Makes it brighter - Makes them itchy - decrease stamina - Damages them - Dries them out
Ans: Damages them

(Q).
If an animal lives under ground then that animal will be protected from a wild fire, and wild fires rage in California. Given these facts, animals that live where in California will be protected from some natural disasters among the following options: - under ground - in the open - food and shelter - threatened - above ground - important habitats - survive - in the fields
(A).
under ground

Ques:Wiring requires an electrical conductor, and ground wire acts as an extra conductor. Given these facts, what can a ground be used as among the following options: - Metling snow - energy - protect them - conductor - support - watershred - storing water - watershed

Ans:conductor

Ques:Aflashlight requires a source of electricity to produce light, and light contains energy. Given these facts, a flashlight needs electricity to produce what among the following options: - an object - heat energy - rain or sun shine - an electron lens - visible energy - movement - electron microscope - food and shelter

Ans:
visible energy