In creating a model of our living planet, scientists need to consider four major Earth systems. Briefly describe these four systems, and then explain why it is difficult to study these systems individually. in own words please...

sorry :(

oceans

indian ocean

pacific ocean

atlantic ocean

arctic ocean

southern ocean

feral cats are estimated to eat tens of millions of native animals each night in australia

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

a. population growth is decreasing

-2

+4

-10

-3

-8

-3

so the population decreased by 24 because 3+3+8+10+2=26-2=24.

hoped i !

explanation: