Base your answers to questions 1 and 2 on the rock columns below and on your knowledge of Earth
science. The rock columns represent four widely separated locations, W, X, Y, and Z. Number 1, 2, 3,
and 4 represent fossils. The rock layers have not been overturned.
Location W
Location X
Location Y
Brown
siltstone
Tan
limestone
Black
shale
Location z
Food Gray
Gray
conglomerate
Booa
Tan
limestone
Red
sandstone
Brown
siltstone
Gray
limestone
Black
shale
Red
sandstone
Tan
sandstone
Brown
siltstone
Gray
limestone
Black
shale
Gray
siltstone
Red
sandstone
Tan
sandstone
Gray
limestone
Green
shale
Black
shale
1. Which rock layer is the oldest?
A) tan sandstone B) gray limestone C) green shale
D) black shale

Now it's your turn to investigate human impact around the world. grab your virtual lab coat and put on your environmental science hat. you will be taking a trip around the globe to explore three locations. at each location, you will investigate the cause and effect relationships of deforestation, desertification, and urbanization. you will also gather evidence of how these factors have impacted the environment over time

Which statement best describes the relationship between an allele and a gene? question 1 options: an allele is a variation of a gene that can be expressed as a phenotype. an allele is the part of a gene that attaches to messenger rna molecules. an allele is a segment of a dna molecule that controls replication of a gene.

Getting out of bed is the first goal i tackle each day. 2several small goals are achieved by me as the day progresses. 3when i am riding the bus home or walking the dog, i think about the bigger goals i have for my life. which statement correctly describes the verb tense, aspect, and voice in this paragraph? a. sentences 1 and 2 contain present progressive verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice. b. sentences 1 and 2 contain simple present verbs. sentence 3 contains present progressive verbs. all three sentences use active voice. c. sentences 1 and 2 contain present progressive verbs. sentence 3 contains simple present verbs. all three sentences use active voice. d. sentences 1 and 2 contain simple present verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice.