Which element makes up earth's atmosphere?

a. hydrogen

b. carbon

c. oxygen

d. nitrogen

Instead of clear-cutting land and moving on, a local lumber business decides to start farming trees: cutting some of the trees and planting the fields they have just cut with saplings.

A tortoise travel 15 meters west, then another 13 centimeters west. How many total has the tortoise walked?

What is 4 Newtons plus 4 Newtons?

The eye of a category 2 hurricane is 450 nautical miles away and forecast to come ashore at your coastal location. the tropical storm-force winds extend 150 nautical miles.

Fusion and fission are both processes that involve which fundamental force? to ask? A. gravitational B. weak nuclear C. electromagnetic D. strong nuclear

What is Nothing. (sorry i have been wondering this for a very long time)

What is the weight of a 15kg dog on earth?

Identify the scenario below as to whether they increase, decrease, or not change the frequency in which a string vibrates and thus change its pitch. Assume that no other changes are happening. 1. Tightening a string for greater tension 2.

Explain what each of the following scientists contribute to the atomic theory

A fully charged parallel-plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same? Select one or more: a. delta V increases b.