The process that joints (natural fractures) split rock into piece is called:

a. physical weathering
b. chemical weathering
c. biological weathering
d. geological weathering


Answer: a. physical weathering

Environmental & Atmospheric Sciences

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The term "El NiƱo" phenomena in December in Peru explains

A) warming of an otherwise cold current, which brings heavy rain and flooding. B) cooling of an otherwise cold current, which brings heavy rain and flooding. C) warming of an otherwise cold current, which brings high temperatures and drought. D) cooling of an otherwise warm current, which brings high temperatures and drought.

Environmental & Atmospheric Sciences

The atomic number of an element equals the number of ________ in each atom.

A. electrons B. protons C. neutrons D. Answers neutrons and protons are both correct; answer electrons is not correct. E. Answers electrons, neutrons and protons are all correct.

Environmental & Atmospheric Sciences

Rising ocean levels are due to

A. melting of ice on land that flows into the ocean. B. warmer water. C. both of these D. none of the above

Environmental & Atmospheric Sciences

Which of the following statements gives an important reason for the large daily temperature range over deserts?

A. Free convection cells are unable to form above the hot desert ground. B. Dry air is a very poor heat conductor. C. There is little water vapour in the air to absorb and re-radiate infrared radiation. D. The light coloured sand radiates heat very rapidly at night.

Environmental & Atmospheric Sciences