Answer:
True,Every chemical reaction obeys the law of conservation of mass.
Answer:
B- finding new sources of freshwater
Explanation:
To solve the world water crisis we need to conserve water. Finding new sources of water increases the rate of drought, famine and water scarcity in zones. It can also act as a factor of desertification. We need to reduce, reuse and recycle when trying to conserve a resource.
Because the church said he was lying and at the time the church was the head of science so if the church said it was true Galileos discoveries did not go with the church's so they sentenced him to death
Gradient = difference in elevation/horizontal distance