| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.85 |
| Score | 0% | 57% |
In the water cycle, infiltration is most closely related to:
oceans |
|
rivers |
|
runoff |
|
water table |
The water then accumulates as runoff and eventually returns to bodies of water or is absorbed into the Earth (infiltration) and becomes part of the water table, an underground resevoir of fresh water.
Within DNA, a variety of a particular gene is called a(n):
heterozygous |
|
allele |
|
chromosome |
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homozygous |
The gene is the base unit of inheritance and is contained within DNA. A gene may come in several varieties (alleles) and there are a pair of alleles for every gene. If the alleles are alike, a person is homozygous for that gene. If the alleles are different, heterozygous.
I biome is made up of naturally occurring flora and fauna. Fauna is which of the following?
minerals |
|
plants |
|
habitats |
|
animals |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
The ozone layer is in which of Earth's atmospheric layers?
thermosphere |
|
stratosphere |
|
mesosphere |
|
troposphere |
The stratosphere is just above the troposphere and is stratified in temperature with warmer layers higher and cooler layers closer to Earth. This increase in temperature is a result of absorption of the Sun's radiation by the ozone layer.
What type of cloud is responsible for fog?
cumulonimbus |
|
cirrus |
|
stratus |
|
cumulus |
Clouds are categorized based on their shape, size, and altitude. Stratus clouds are low-altitude clouds characterized by horizontal layering with a broad flat base. When stratus clouds occur on the ground the result is fog.