A lightcurve is:

A. Sound versus time

B. Brightness versus time

C. Temperature versus light

D. Magnitude versus light

Astronomy.

Based on fault trenching work, geologists can use broken soils (that geologists date in a lab using charcoal) to identify past earthquakes. What is the average duration between Hayward fault earthquakes indicated by these data

Light cannot escape the intense gravitational pull of A black dwarf B red giant C main-sequence star D black hole

In what modern-day country was Potosí located? a. Bolivia c. Brazil b. Peru d. Argentina

The arrival for warships from this nation forced Japan to give up its policy of seclusion

Which statements accurately describe the climate of the Andean region? Choose all correct answers. The higher the elevation, the cooler the temperatures. Crops can be grown at all elevations.

An earthquake causes a tsunami because force from the quake a. pushes a large body of water up from the ocean floor. b. pulls water down toward the source of the quake. c. blows surface water away from the shore. d.

What is the largest religion in the world? 1. Islam 2. Hinduism 3. Christianity 4. Judaism

What civilization is considered the mother-culture of pre-Hispanic Mexico? A. Maya B. Olmec C. Aztec D. San Lorenzo

The island chain of hawaii was formed by a mantle hot spot. the island of maui is 1.1 million years old while the big island of hawaii is 0.4 million years old. how fast is the pacific plate moving based on these average ages

If Earth's Moon was formed 3.8 billion years ago, then why are some of the rocks found on the Moon dating back to 4.6 billion years ago