Place these events in the correct sequence: neil armstrong lands on the moon, sputnik i, john glenn orbits the earth, nasa formed, yuri gagarin orbits earth.

Explain how you might determine the rate of weathering on a sample rock

Nathan is an ecologist. he’s studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.

How are brightness and size related when it comes to stars