True or False. Write your answer on your answer sheet.
1. About 200 tropical cyclones enter the Philippine
Area of Responsibility each year.
2. Tropical cyclones require cold ocean waters to be
able to develop
3. The lowest air pressure is at the eye of a tropical
cyclone.
4. The orbit of an asteroid is more rounded and less
elliptical than the orbit of a comet. 5. A meteor
and a meteor shower are light phenomena; they are
not stars
6. Comets are rocky fragments and are believed to
be remnants from the formation of our solar system
billion years ago.
7. Asteroids, comets and meteors are parts of the
solar system. They also revolve round the sun.
8. A meteoroid is a chunk of dust and ice that orbits
around the sun and slowly vaporizes as it goes near
the sun
9. Comets are often seen in the night sky as
"shooting stars”.
10. Asteroid usually come from the Oort cloud
which is beyond our solar system.​

FALSE

Explanation:

1st one is true

Explanation:

he kicked it 10 feet straight up into the air? i think this works.

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz