Which statements are true? Check all that apply.

1.All landforms have the same combinations of elevation and relief.
2.Different landforms have different combinations of elevation and relief.
3.Elevation is the height of a feature above sea level.
4.Relief is the height of a feature below sea level.
5.Relief is the difference between the highest and lowest points in an area.

This is due ! matching pairs of chromosomes from parents are called a. homologous chromosomes b. heterozygous chromosomes c. herterogenes d. homologous bands

State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.