Answer:
because the trigger for this is commonly encountered like a change in temperature
The rocks near the mid-ocean ridge were younger then rock near trenches. Matching bands of magnetic rocks were found on either side of the mid-ocean ridge; bands like tree ring - record changes in earths magnetic field over time. Earthquake data showed oceanic crust is sinking on to the mantle at trenches.
Work done is the product of distance and force, it is measured in joules.
Power is the rate of work done given by dividing the work done by time
Power (watts)= workdone (J)/ time (s)
= 50,000J/7 sec
= 7142.857 watts
Therefore, the power of the car during the race was 7142.857 watts
Answer:
C) Most coniferous trees have both male and female cones.
Explanation:
- Unlike flowering plants, conifers do not bear flowers. instead of flower they bear male and female cones.
- The male cone produces the pollen and the female cone contains ovule which develop into seeds.
- The reproductive cycle of a conifer begins in the spring when the male cone releases pollen in the wind and these pollen get trapped in the scales of female cones.
- These pollen goes through a resting period and then fertilizes the ovule.that matures into seed.
- The seeds of conifers are naked. i.e. not enclosed
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