Homework questions #1 and 2 Flashcards Preview

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Flashcards in Homework questions #1 and 2 Deck (17):
1

Name and define 4 environmental spheres

Lithosphere - land
Hydrosphere - weather
Atmosphere - air
Biosphere - life

2

What is the highest location and elevation on earth?

mount Everest - 29.035 above sea level....below sea would be the MT. in Hawaii

3

What is the lowest location and elevation on earth?

Dead sea - 1.371 below sea level

4

Latitude is measured North and South of ...

the equator

5

What is the highest number of degrees of latitude?

90'

6

Longitude line are also referred to as ...

meridians

7

How many time zones in the world and how many degrees apart?

24 and 15'

8

Who was Alfred Wegener?

He was a geophysics and meteorologist who proposed the idea of continental drifts.

9

What were scientists up to in the 1950s considering the ocean?

Maps of the ocean floors were being developed, allowing the findings of fault and plate lines.

10

What year was plate tectonics accepted by the scientific community?

1968

11

The validity of seafloor spreading was confirmed by two lines of evidence...

1. Glomar Challenger 2. pale magnetism

12

Name the plate that is interacting with the west side of the South American plate?

NAZCA plate

13

Name the plate that is interacting with the west side of the North American plate along the coast of Oregon and Washington area?

Juan de Fuca

14

How many active volcanoes are there in the world?

1500

15

How many volcanoes will erupt this week/year/decade?

15/55/160

16

The nature of a volcanic eruption id determined by the what of the magmas?

chemistry

17

Name the world's largest volcano...

Manna Loa