How often do tides rise and fall?
a. once a day
c. every 14 days
b. twice a day
d. every 24 h, 50 m select the best answer from the choices provided a b c d

Which of the following statements best explains the relationship between medicines and concerns about the shrinking of the amazon rainforest?

Match the vocabulary word with its meaning

In a world that produces enough food for every human, why is the distribution of food consumption and production so unequal? in a few sentences, explain why production and consumption of food is lower in the least-development countries (ldcs).