1. gravitational force
2. electrostatic force
3. magnetic force
4. nuclear force
Answer:
Form a conclusion
Explanation:
I believe this because they others don't make sense I'm sorry if it's in correct
The existence of land bridges was used to dispute continental drift
It seems that you have missed the given choices for this question, but anyway, the correct answer is FEMALE REINDEER. In 1944, reindeer were introduced to an optimal habitat on St. Matthew Island in the Bering Sea. The population grew exponentially until the winter of 1963-64, when the population dropped dramatically. The presence of FEMALE REINDEER may have helped maintain the population of reindeer.
Chloroplasts should be the answer