If the conditional statement "If I use my cell phone too much, my bill will be expensive," is true, which other statement must also be true?

What do you think was the long term impact of england victory

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it

One disadvantage that darwin faces today is w. enemy attacks x. natural disasters y. lack of land bridge z. high population density