Detrital zircon from sedimentary rocks found in Australia yields an age of 4.4 billion years, which indicates that rocks

formed on Earth at least 4.4 billion years ago.
a. True
b. False


True

Environmental & Atmospheric Sciences

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Evaporation of pluvial lakes formed thick sand and gravel deposits

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

A farmer is tired of watching crops die in the field from several pest species. She decides that next year she is going to use every type of ecological pest control she can find to address the problem

Over the winter she gets ready, ordering pheromones that interfere with the reproduction of the pests, sterile male flies that will try to reproduce with some of the pest flies, and wasps that lay their eggs in the larvae of another pest. It is expensive, but she thinks this should work well. Which of the following forms of control is she not using? A) Natural enemies control B) Cultural control C) Genetic control D) Natural chemical control

Environmental & Atmospheric Sciences

What type of alcohol is formed by the hydration of 1-pentene?

A) primary B) secondary C) tertiary D) None of these, the product is not an alcohol.

Environmental & Atmospheric Sciences

Amplitude is the height of a seismic wave and is directly related to the amount of ground movement

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences