Which gas do plants take in for photosynthesis?
Anonymous Quiz
15%
Oxygen
83%
Carbon dioxide
2%
Nitrogen
0%
Hydrogen
Moth caterpillars feed on the leaves of trees, causing the trees to die over time. Some ways of getting rid of the moth caterpillar are spraying eco-friendly pesticides and cutting or burning down of the affected trees.
Based on the information provided, which of the following outcomes are likely to result over time?
A Loss of habitats
B Depletion of ozone layer
C Loss of aquatic life in the nearby rivers
Based on the information provided, which of the following outcomes are likely to result over time?
A Loss of habitats
B Depletion of ozone layer
C Loss of aquatic life in the nearby rivers
❤1
Which is the correct answer?
Anonymous Quiz
34%
A and B only
28%
A and C only
6%
B and C only
31%
A, B and C
Irene released a wooden block from the top of a ramp as shown. The wooden block slid down the ramp and moved along the floor stopping at point S.
Which of the following statement are true about the wooden block?
A) The wooden block has the most potential energy at P.
B) The wooden block only had kinetic energy at Q and R.
C) The wooden block has more potential energy at R than at Q.
D) If lubricant is applied on the floor, the wooden block would slide beyond S.
Which of the following statement are true about the wooden block?
A) The wooden block has the most potential energy at P.
B) The wooden block only had kinetic energy at Q and R.
C) The wooden block has more potential energy at R than at Q.
D) If lubricant is applied on the floor, the wooden block would slide beyond S.
Which is the correct answer?
Anonymous Quiz
21%
A and B only
12%
C and D only
48%
A and D only
18%
A, B, C and D
Which form of energy is present in a stretched rubber band?
Anonymous Quiz
20%
Kinetic energy
4%
Heat energy
76%
Potential energy
0%
Sound energy
👍1
What will happen when an object is dropped in water and it is denser than water?
Anonymous Quiz
83%
The object will sink.
2%
The object will dissolve.
14%
The object will float.
0%
The object will remain suspended
Which of the following processes involves a change of state from gas to liquid?
Anonymous Quiz
2%
Melting
0%
Freezing
15%
Evaporation
83%
Condensation
Which organ removes waste products from the blood in humans?
Anonymous Quiz
13%
Heart
29%
Liver
48%
Kidneys
10%
Stomach
How do cactus plants reduce water loss?
Anonymous Quiz
0%
They have large leaves.
52%
They have needle-like leaves.
41%
They store water in their roots.
7%
They release water through their stems.
Which of the following objects is translucent?
Anonymous Quiz
9%
Mirror
23%
Plastic sheet
64%
Frosted glass
4%
Aluminum foil
Which material is a good conductor of electricity?
Anonymous Quiz
7%
Rubber
0%
Plastic
2%
Wood
91%
Copper
Which part of the plant produces food through photosynthesis?
Anonymous Quiz
8%
Roots
6%
Stem
80%
Leaves
6%
Flowers
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