11. the magnetic field is important to life on earth because it prevents the solar wind from
a. stripping earth of its atmosphere
b. interfering with compasses
c. removing earth's oceans
d. melting earth's surface

How would you take a difficult subject matter - such as poaching, deforestation, or climate change and communicate it in a kid-friendly way

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations

Which of the following determines the specificity of a dna probe? a. type of radiation b. level of enzymatic activity c. number of neutrons d. complementary base pairing