Please help me with these 3 questions

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).

Answergoogle earth; i believe this is the correct answer, plz check first;

Answerhighlands and forests;