Observations of nature often produce questions about how nature works. A question is sometimes called a
problem (or problem statement). "What causes squid to
produce ink?" is an example of a question (or problem).
Question: What is a problem?
A. It is something bad that should be fixed.
B. It is a guess that you make about natural phenomena.
C. It is a question that you want to answer.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

Simple multiply 45 units by $0.99you'll get $44.55