Earth science what would happen if you rubbed a piece of calcite (hardness 3) against a piece of quartz (hardness 7)? a.) calcite would break into three directional cleavage b.) calcite scratches quartz c.) quartz would cause a streak on calcite d.) quartz scratches calcite

What structure on the south african coast has a range of 63 km and releases flashes every 30 seconds?

Hey this is extremely !international aid debate for geography 10 will mark de brainliest! questions are down below plz put an answer and evidence for it. q1: what are the problems with international aid? q2: what are the alternatives to international aid? q3: what do you think is the best approach to offer international aid? ( answer these questions with credible answers and evidence)

You are a scientist who has been sent on a special mission to study plants and animals in south asia! your destination is an important forest in eastern india. you need to travel to 17°n latitude and 83°e longitude.