What factors are most important when deciding what information to use?
a. it must agree with your ideas and be from secondary data.
b. it must agree with your ideas and be reliable.
c. it must be unbiased and verifiable.
d. it must be verifiable and from primary data.

preservation because he preserves part of the land and preserves means save

explanation:

a. by using fur or clothes to trap heat energy near the body

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation: