What substance, if added to the mixture of salt and sand, could be separated from the mixture using a sieve O sugar
O iron filings
O flour
O plastic beads

d. temperate deciduous forest

1. they vary with a higher number because boiling is way hotter than melting

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.