After learning about climate change in her science class, selena wants to make a few changes at home so she can affect climate change in a small way. which changes will give her the best results?
a. switch off appliances that are not in use.
b. study harder for school tests.
c. eat more nutritious foods.
d. recycle used books and magazines.
e. assist her father with household chores.

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)