Which property can be observed just by looking at a mineral?

-luster

-streak

-hardness

-reactivity to acid

How long does it take for island arcs to form?

What process in earth's interior causes subduction and seafloor spreading Also srry if it is not in the correct subject!

What's the process called when water accumulates in pools of water such as ponds, lakes and oceans.

Which passes bills they hope will become laws? A. Senate B. House of Representatives C. Both senate and house D. Neither the senate nor house If you want to explain why, go ahead.

Chronic diseases are more common today than in the past in developed countries due to a decreased malnutrition b increased access to clean water c population decline d better health care e longer life expectancies

Why are oxygen concentrations in the deep waters of the North Atlantic higher than the concentrations found in the deep North Pacific?

By what year will 2/3 of the world's population lack access to clean drinking water?

How Dawlish Warren is formed

What are two factors that influence the gravitational pull of an object?

Which resources are important to the economies of many countries in Siberian Russia, Central Asia, and the Caucasus region? A. oil B. timber C. diamonds D. coal