If the Himalayas were formed from older rock, then the Himalayas were formed from older what? Answer choices: - soils - plates - rivers - rock - eras - meadows - dirt - plains
rock

If lung cancer is a consequence of tobacco fumes, then what is lung cancer a consequence of? Answer choices: - candy cigarettes - harmful substances - Greenhouse gases - malnutrition - water vapors - metabolic reaction - tobacco fumes - Pesticides
tobacco fumes

Q: If marmots are protected from a wild fire because they're underground, then why are marmots protected from wild fire? Answer choices: - They're in water - an external framework - water conservation - hard outer covering - They don't live near fire - They're underground - They're fireproof - important habitats
A: They're underground

Question: If salamanders can move through water, then where can salamanders move? Answer choices: - through rocks - in the air - through water - on top of water - watershred - near the shoreline - in the frog family - their hosts
Answer: through water

*Question*
If cactus stems hold water to survive droughts, then how does a cactus survive droughts? Answer choices: - It becomes dormant - It helps them survive - roots and shoots - high humidity - circulatory systems - roots to grow - Holding water in the stem - dormant state
**Answer**
Holding water in the stem

(Q).
If an ecosystem's complexity increases its productivity and stability, then an ecosystem's what increases its productivity and stability? Answer choices: - elevation - complexity - Quality of life - seasons - seasonal changes - Animal survival - trees - Plants growth
(A).
complexity